Home / 87,508.54-131,065.80-61,330.15

Finding the Fourth Proportional to 87,508.54, 131,065.80 and 61,330.15

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Solution

The fourth proportional to 87,508.54, 131,065.80 and 61,330.15 is: 91,857.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,508.54 : 131,065.80 = 61,330.15 : x
  2. Step 2: Convert to fraction form
    87,508.54/131,065.80 = 61,330.15/x
  3. Step 3: Cross multiply
    87,508.54x = 131,065.80 × 61,330.15
  4. Step 4: Simplify right side
    87,508.54x = 8,038,285,173.87
  5. Step 5: Solve for x
    x = 8,038,285,173.87/87,508.54
  6. Step 6: Final answer
    x = 91,857.15

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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.