Home / 82,989.38-124,608.18-47,490.68

Finding the Fourth Proportional to 82,989.38, 124,608.18 and 47,490.68

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Solution

The fourth proportional to 82,989.38, 124,608.18 and 47,490.68 is: 71,307.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,989.38 : 124,608.18 = 47,490.68 : x
  2. Step 2: Convert to fraction form
    82,989.38/124,608.18 = 47,490.68/x
  3. Step 3: Cross multiply
    82,989.38x = 124,608.18 × 47,490.68
  4. Step 4: Simplify right side
    82,989.38x = 5,917,727,201.76
  5. Step 5: Solve for x
    x = 5,917,727,201.76/82,989.38
  6. Step 6: Final answer
    x = 71,307.04

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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.