Home / 87,053.22-120,127.32-48,809.88

Finding the Fourth Proportional to 87,053.22, 120,127.32 and 48,809.88

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Solution

The fourth proportional to 87,053.22, 120,127.32 and 48,809.88 is: 67,354.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,053.22 : 120,127.32 = 48,809.88 : x
  2. Step 2: Convert to fraction form
    87,053.22/120,127.32 = 48,809.88/x
  3. Step 3: Cross multiply
    87,053.22x = 120,127.32 × 48,809.88
  4. Step 4: Simplify right side
    87,053.22x = 5,863,400,073.92
  5. Step 5: Solve for x
    x = 5,863,400,073.92/87,053.22
  6. Step 6: Final answer
    x = 67,354.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.