Home / 87,317.76-131,034-47,902.56

Finding the Fourth Proportional to 87,317.76, 131,034 and 47,902.56

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Solution

The fourth proportional to 87,317.76, 131,034 and 47,902.56 is: 71,885.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,317.76 : 131,034 = 47,902.56 : x
  2. Step 2: Convert to fraction form
    87,317.76/131,034 = 47,902.56/x
  3. Step 3: Cross multiply
    87,317.76x = 131,034 × 47,902.56
  4. Step 4: Simplify right side
    87,317.76x = 6,276,864,047.04
  5. Step 5: Solve for x
    x = 6,276,864,047.04/87,317.76
  6. Step 6: Final answer
    x = 71,885.31

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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.