Home / 285,046.20-427,593.78-74,684.16

Finding the Fourth Proportional to 285,046.20, 427,593.78 and 74,684.16

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Solution

The fourth proportional to 285,046.20, 427,593.78 and 74,684.16 is: 112,032.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,046.20 : 427,593.78 = 74,684.16 : x
  2. Step 2: Convert to fraction form
    285,046.20/427,593.78 = 74,684.16/x
  3. Step 3: Cross multiply
    285,046.20x = 427,593.78 × 74,684.16
  4. Step 4: Simplify right side
    285,046.20x = 31,934,482,280.52
  5. Step 5: Solve for x
    x = 31,934,482,280.52/285,046.20
  6. Step 6: Final answer
    x = 112,032.65

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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.