Home / 47,757.20-71,640.35-19,679.15

Finding the Fourth Proportional to 47,757.20, 71,640.35 and 19,679.15

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Solution

The fourth proportional to 47,757.20, 71,640.35 and 19,679.15 is: 29,520.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,757.20 : 71,640.35 = 19,679.15 : x
  2. Step 2: Convert to fraction form
    47,757.20/71,640.35 = 19,679.15/x
  3. Step 3: Cross multiply
    47,757.20x = 71,640.35 × 19,679.15
  4. Step 4: Simplify right side
    47,757.20x = 1,409,820,737.11
  5. Step 5: Solve for x
    x = 1,409,820,737.11/47,757.20
  6. Step 6: Final answer
    x = 29,520.59

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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.