Home / 87,948.21-131,875.77-40,521.90

Finding the Fourth Proportional to 87,948.21, 131,875.77 and 40,521.90

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Solution

The fourth proportional to 87,948.21, 131,875.77 and 40,521.90 is: 60,761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,948.21 : 131,875.77 = 40,521.90 : x
  2. Step 2: Convert to fraction form
    87,948.21/131,875.77 = 40,521.90/x
  3. Step 3: Cross multiply
    87,948.21x = 131,875.77 × 40,521.90
  4. Step 4: Simplify right side
    87,948.21x = 5,343,856,764.36
  5. Step 5: Solve for x
    x = 5,343,856,764.36/87,948.21
  6. Step 6: Final answer
    x = 60,761.40

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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.