Home / 85,853.84-128,761.08-23,529.20

Finding the Fourth Proportional to 85,853.84, 128,761.08 and 23,529.20

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Solution

The fourth proportional to 85,853.84, 128,761.08 and 23,529.20 is: 35,288.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,853.84 : 128,761.08 = 23,529.20 : x
  2. Step 2: Convert to fraction form
    85,853.84/128,761.08 = 23,529.20/x
  3. Step 3: Cross multiply
    85,853.84x = 128,761.08 × 23,529.20
  4. Step 4: Simplify right side
    85,853.84x = 3,029,645,203.54
  5. Step 5: Solve for x
    x = 3,029,645,203.54/85,853.84
  6. Step 6: Final answer
    x = 35,288.41

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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.