Home / 91,613.52-137,439.99-28,432.44

Finding the Fourth Proportional to 91,613.52, 137,439.99 and 28,432.44

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Solution

The fourth proportional to 91,613.52, 137,439.99 and 28,432.44 is: 42,654.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,613.52 : 137,439.99 = 28,432.44 : x
  2. Step 2: Convert to fraction form
    91,613.52/137,439.99 = 28,432.44/x
  3. Step 3: Cross multiply
    91,613.52x = 137,439.99 × 28,432.44
  4. Step 4: Simplify right side
    91,613.52x = 3,907,754,269.28
  5. Step 5: Solve for x
    x = 3,907,754,269.28/91,613.52
  6. Step 6: Final answer
    x = 42,654.78

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1.5x scale

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.