Home / 87,764.45-131,566.70-31,591.35

Finding the Fourth Proportional to 87,764.45, 131,566.70 and 31,591.35

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Solution

The fourth proportional to 87,764.45, 131,566.70 and 31,591.35 is: 47,358.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,764.45 : 131,566.70 = 31,591.35 : x
  2. Step 2: Convert to fraction form
    87,764.45/131,566.70 = 31,591.35/x
  3. Step 3: Cross multiply
    87,764.45x = 131,566.70 × 31,591.35
  4. Step 4: Simplify right side
    87,764.45x = 4,156,370,240.40
  5. Step 5: Solve for x
    x = 4,156,370,240.40/87,764.45
  6. Step 6: Final answer
    x = 47,358.24

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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.