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Finding the Fourth Proportional to 83,680.40, 125,520.60 and 58,748.60

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Solution

The fourth proportional to 83,680.40, 125,520.60 and 58,748.60 is: 88,122.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,680.40 : 125,520.60 = 58,748.60 : x
  2. Step 2: Convert to fraction form
    83,680.40/125,520.60 = 58,748.60/x
  3. Step 3: Cross multiply
    83,680.40x = 125,520.60 × 58,748.60
  4. Step 4: Simplify right side
    83,680.40x = 7,374,159,521.16
  5. Step 5: Solve for x
    x = 7,374,159,521.16/83,680.40
  6. Step 6: Final answer
    x = 88,122.90

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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.