Home / 89,411.19-134,178.30-36,820.67

Finding the Fourth Proportional to 89,411.19, 134,178.30 and 36,820.67

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Solution

The fourth proportional to 89,411.19, 134,178.30 and 36,820.67 is: 55,256.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,411.19 : 134,178.30 = 36,820.67 : x
  2. Step 2: Convert to fraction form
    89,411.19/134,178.30 = 36,820.67/x
  3. Step 3: Cross multiply
    89,411.19x = 134,178.30 × 36,820.67
  4. Step 4: Simplify right side
    89,411.19x = 4,940,534,721.36
  5. Step 5: Solve for x
    x = 4,940,534,721.36/89,411.19
  6. Step 6: Final answer
    x = 55,256.34

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.