Home / 72,930.65-109,177.27-51,877.13

Finding the Fourth Proportional to 72,930.65, 109,177.27 and 51,877.13

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Solution

The fourth proportional to 72,930.65, 109,177.27 and 51,877.13 is: 77,660.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,930.65 : 109,177.27 = 51,877.13 : x
  2. Step 2: Convert to fraction form
    72,930.65/109,177.27 = 51,877.13/x
  3. Step 3: Cross multiply
    72,930.65x = 109,177.27 × 51,877.13
  4. Step 4: Simplify right side
    72,930.65x = 5,663,802,753.26
  5. Step 5: Solve for x
    x = 5,663,802,753.26/72,930.65
  6. Step 6: Final answer
    x = 77,660.12

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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.