Home / 82,712.85-124,120.31-38,331.33

Finding the Fourth Proportional to 82,712.85, 124,120.31 and 38,331.33

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Solution

The fourth proportional to 82,712.85, 124,120.31 and 38,331.33 is: 57,520.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,712.85 : 124,120.31 = 38,331.33 : x
  2. Step 2: Convert to fraction form
    82,712.85/124,120.31 = 38,331.33/x
  3. Step 3: Cross multiply
    82,712.85x = 124,120.31 × 38,331.33
  4. Step 4: Simplify right side
    82,712.85x = 4,757,696,562.31
  5. Step 5: Solve for x
    x = 4,757,696,562.31/82,712.85
  6. Step 6: Final answer
    x = 57,520.65

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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.