Home / 40,787.60-61,174.68-13,082

Finding the Fourth Proportional to 40,787.60, 61,174.68 and 13,082

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Solution

The fourth proportional to 40,787.60, 61,174.68 and 13,082 is: 19,620.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,787.60 : 61,174.68 = 13,082 : x
  2. Step 2: Convert to fraction form
    40,787.60/61,174.68 = 13,082/x
  3. Step 3: Cross multiply
    40,787.60x = 61,174.68 × 13,082
  4. Step 4: Simplify right side
    40,787.60x = 800,287,163.76
  5. Step 5: Solve for x
    x = 800,287,163.76/40,787.60
  6. Step 6: Final answer
    x = 19,620.84

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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.