Home / 87,391.56-131,095.86-34,788.72

Finding the Fourth Proportional to 87,391.56, 131,095.86 and 34,788.72

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Solution

The fourth proportional to 87,391.56, 131,095.86 and 34,788.72 is: 52,186.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,391.56 : 131,095.86 = 34,788.72 : x
  2. Step 2: Convert to fraction form
    87,391.56/131,095.86 = 34,788.72/x
  3. Step 3: Cross multiply
    87,391.56x = 131,095.86 × 34,788.72
  4. Step 4: Simplify right side
    87,391.56x = 4,560,657,166.70
  5. Step 5: Solve for x
    x = 4,560,657,166.70/87,391.56
  6. Step 6: Final answer
    x = 52,186.47

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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.