Home / 72,613.07-108,962.24-30,489.92

Finding the Fourth Proportional to 72,613.07, 108,962.24 and 30,489.92

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Solution

The fourth proportional to 72,613.07, 108,962.24 and 30,489.92 is: 45,752.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,613.07 : 108,962.24 = 30,489.92 : x
  2. Step 2: Convert to fraction form
    72,613.07/108,962.24 = 30,489.92/x
  3. Step 3: Cross multiply
    72,613.07x = 108,962.24 × 30,489.92
  4. Step 4: Simplify right side
    72,613.07x = 3,322,249,397.70
  5. Step 5: Solve for x
    x = 3,322,249,397.70/72,613.07
  6. Step 6: Final answer
    x = 45,752.77

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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.