Home / 87,612.41-131,424.98-31,459.35

Finding the Fourth Proportional to 87,612.41, 131,424.98 and 31,459.35

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Solution

The fourth proportional to 87,612.41, 131,424.98 and 31,459.35 is: 47,191.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,612.41 : 131,424.98 = 31,459.35 : x
  2. Step 2: Convert to fraction form
    87,612.41/131,424.98 = 31,459.35/x
  3. Step 3: Cross multiply
    87,612.41x = 131,424.98 × 31,459.35
  4. Step 4: Simplify right side
    87,612.41x = 4,134,544,287.27
  5. Step 5: Solve for x
    x = 4,134,544,287.27/87,612.41
  6. Step 6: Final answer
    x = 47,191.31

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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.