Home / 87,617.40-131,315.34-47,634.72

Finding the Fourth Proportional to 87,617.40, 131,315.34 and 47,634.72

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Solution

The fourth proportional to 87,617.40, 131,315.34 and 47,634.72 is: 71,391.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,617.40 : 131,315.34 = 47,634.72 : x
  2. Step 2: Convert to fraction form
    87,617.40/131,315.34 = 47,634.72/x
  3. Step 3: Cross multiply
    87,617.40x = 131,315.34 × 47,634.72
  4. Step 4: Simplify right side
    87,617.40x = 6,255,169,452.60
  5. Step 5: Solve for x
    x = 6,255,169,452.60/87,617.40
  6. Step 6: Final answer
    x = 71,391.86

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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.