Home / 80,280.72-120,398.40-50,654.16

Finding the Fourth Proportional to 80,280.72, 120,398.40 and 50,654.16

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Solution

The fourth proportional to 80,280.72, 120,398.40 and 50,654.16 is: 75,966.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,280.72 : 120,398.40 = 50,654.16 : x
  2. Step 2: Convert to fraction form
    80,280.72/120,398.40 = 50,654.16/x
  3. Step 3: Cross multiply
    80,280.72x = 120,398.40 × 50,654.16
  4. Step 4: Simplify right side
    80,280.72x = 6,098,679,817.34
  5. Step 5: Solve for x
    x = 6,098,679,817.34/80,280.72
  6. Step 6: Final answer
    x = 75,966.93

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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.