Home / 91,585.90-137,398.58-28,404.76

Finding the Fourth Proportional to 91,585.90, 137,398.58 and 28,404.76

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Solution

The fourth proportional to 91,585.90, 137,398.58 and 28,404.76 is: 42,613.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,585.90 : 137,398.58 = 28,404.76 : x
  2. Step 2: Convert to fraction form
    91,585.90/137,398.58 = 28,404.76/x
  3. Step 3: Cross multiply
    91,585.90x = 137,398.58 × 28,404.76
  4. Step 4: Simplify right side
    91,585.90x = 3,902,773,689.24
  5. Step 5: Solve for x
    x = 3,902,773,689.24/91,585.90
  6. Step 6: Final answer
    x = 42,613.26

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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.