Home / 72,747.24-108,587.68-67,404.30

Finding the Fourth Proportional to 72,747.24, 108,587.68 and 67,404.30

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Solution

The fourth proportional to 72,747.24, 108,587.68 and 67,404.30 is: 100,612.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,747.24 : 108,587.68 = 67,404.30 : x
  2. Step 2: Convert to fraction form
    72,747.24/108,587.68 = 67,404.30/x
  3. Step 3: Cross multiply
    72,747.24x = 108,587.68 × 67,404.30
  4. Step 4: Simplify right side
    72,747.24x = 7,319,276,559.02
  5. Step 5: Solve for x
    x = 7,319,276,559.02/72,747.24
  6. Step 6: Final answer
    x = 100,612.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.