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Finding the Fourth Proportional to 80,937.43, 111,764.17 and 50,774.60

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Solution

The fourth proportional to 80,937.43, 111,764.17 and 50,774.60 is: 70,113.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,937.43 : 111,764.17 = 50,774.60 : x
  2. Step 2: Convert to fraction form
    80,937.43/111,764.17 = 50,774.60/x
  3. Step 3: Cross multiply
    80,937.43x = 111,764.17 × 50,774.60
  4. Step 4: Simplify right side
    80,937.43x = 5,674,780,526.08
  5. Step 5: Solve for x
    x = 5,674,780,526.08/80,937.43
  6. Step 6: Final answer
    x = 70,113.18

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1.5x scale

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.