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Finding the Fourth Proportional to 80,520.42, 121,262.88 and 73,337.88

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Solution

The fourth proportional to 80,520.42, 121,262.88 and 73,337.88 is: 110,446.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,520.42 : 121,262.88 = 73,337.88 : x
  2. Step 2: Convert to fraction form
    80,520.42/121,262.88 = 73,337.88/x
  3. Step 3: Cross multiply
    80,520.42x = 121,262.88 × 73,337.88
  4. Step 4: Simplify right side
    80,520.42x = 8,893,162,541.89
  5. Step 5: Solve for x
    x = 8,893,162,541.89/80,520.42
  6. Step 6: Final answer
    x = 110,446.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.