Home / 83,740.29-115,560.19-45,500.42

Finding the Fourth Proportional to 83,740.29, 115,560.19 and 45,500.42

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Solution

The fourth proportional to 83,740.29, 115,560.19 and 45,500.42 is: 62,789.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,740.29 : 115,560.19 = 45,500.42 : x
  2. Step 2: Convert to fraction form
    83,740.29/115,560.19 = 45,500.42/x
  3. Step 3: Cross multiply
    83,740.29x = 115,560.19 × 45,500.42
  4. Step 4: Simplify right side
    83,740.29x = 5,258,037,005.13
  5. Step 5: Solve for x
    x = 5,258,037,005.13/83,740.29
  6. Step 6: Final answer
    x = 62,789.82

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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.