Home / 42,590.10-63,885.15-38,442.90

Finding the Fourth Proportional to 42,590.10, 63,885.15 and 38,442.90

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Solution

The fourth proportional to 42,590.10, 63,885.15 and 38,442.90 is: 57,664.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,590.10 : 63,885.15 = 38,442.90 : x
  2. Step 2: Convert to fraction form
    42,590.10/63,885.15 = 38,442.90/x
  3. Step 3: Cross multiply
    42,590.10x = 63,885.15 × 38,442.90
  4. Step 4: Simplify right side
    42,590.10x = 2,455,930,432.94
  5. Step 5: Solve for x
    x = 2,455,930,432.94/42,590.10
  6. Step 6: Final answer
    x = 57,664.35

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Similar ratio
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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.