Home / 83,411.16-115,106.68-45,170.76

Finding the Fourth Proportional to 83,411.16, 115,106.68 and 45,170.76

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Solution

The fourth proportional to 83,411.16, 115,106.68 and 45,170.76 is: 62,335.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,411.16 : 115,106.68 = 45,170.76 : x
  2. Step 2: Convert to fraction form
    83,411.16/115,106.68 = 45,170.76/x
  3. Step 3: Cross multiply
    83,411.16x = 115,106.68 × 45,170.76
  4. Step 4: Simplify right side
    83,411.16x = 5,199,456,216.68
  5. Step 5: Solve for x
    x = 5,199,456,216.68/83,411.16
  6. Step 6: Final answer
    x = 62,335.26

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.