Home / 87,709.57-131,340.15-48,223.28

Finding the Fourth Proportional to 87,709.57, 131,340.15 and 48,223.28

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Solution

The fourth proportional to 87,709.57, 131,340.15 and 48,223.28 is: 72,211.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,709.57 : 131,340.15 = 48,223.28 : x
  2. Step 2: Convert to fraction form
    87,709.57/131,340.15 = 48,223.28/x
  3. Step 3: Cross multiply
    87,709.57x = 131,340.15 × 48,223.28
  4. Step 4: Simplify right side
    87,709.57x = 6,333,653,157.04
  5. Step 5: Solve for x
    x = 6,333,653,157.04/87,709.57
  6. Step 6: Final answer
    x = 72,211.66

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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.