Home / 72,521.92-108,814.07-39,265.75

Finding the Fourth Proportional to 72,521.92, 108,814.07 and 39,265.75

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Solution

The fourth proportional to 72,521.92, 108,814.07 and 39,265.75 is: 58,915.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,521.92 : 108,814.07 = 39,265.75 : x
  2. Step 2: Convert to fraction form
    72,521.92/108,814.07 = 39,265.75/x
  3. Step 3: Cross multiply
    72,521.92x = 108,814.07 × 39,265.75
  4. Step 4: Simplify right side
    72,521.92x = 4,272,666,069.10
  5. Step 5: Solve for x
    x = 4,272,666,069.10/72,521.92
  6. Step 6: Final answer
    x = 58,915.51

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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.