Home / 80,534.62-111,119.85-48,702.88

Finding the Fourth Proportional to 80,534.62, 111,119.85 and 48,702.88

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Solution

The fourth proportional to 80,534.62, 111,119.85 and 48,702.88 is: 67,199.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,534.62 : 111,119.85 = 48,702.88 : x
  2. Step 2: Convert to fraction form
    80,534.62/111,119.85 = 48,702.88/x
  3. Step 3: Cross multiply
    80,534.62x = 111,119.85 × 48,702.88
  4. Step 4: Simplify right side
    80,534.62x = 5,411,856,720.17
  5. Step 5: Solve for x
    x = 5,411,856,720.17/80,534.62
  6. Step 6: Final answer
    x = 67,199.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.