Home / 72,561.28-108,841.92-47,931.52

Finding the Fourth Proportional to 72,561.28, 108,841.92 and 47,931.52

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Solution

The fourth proportional to 72,561.28, 108,841.92 and 47,931.52 is: 71,897.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,561.28 : 108,841.92 = 47,931.52 : x
  2. Step 2: Convert to fraction form
    72,561.28/108,841.92 = 47,931.52/x
  3. Step 3: Cross multiply
    72,561.28x = 108,841.92 × 47,931.52
  4. Step 4: Simplify right side
    72,561.28x = 5,216,958,665.32
  5. Step 5: Solve for x
    x = 5,216,958,665.32/72,561.28
  6. Step 6: Final answer
    x = 71,897.28

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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.