Home / 87,400.83-120,623.18-48,642.51

Finding the Fourth Proportional to 87,400.83, 120,623.18 and 48,642.51

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Solution

The fourth proportional to 87,400.83, 120,623.18 and 48,642.51 is: 67,132.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,400.83 : 120,623.18 = 48,642.51 : x
  2. Step 2: Convert to fraction form
    87,400.83/120,623.18 = 48,642.51/x
  3. Step 3: Cross multiply
    87,400.83x = 120,623.18 × 48,642.51
  4. Step 4: Simplify right side
    87,400.83x = 5,867,413,996.17
  5. Step 5: Solve for x
    x = 5,867,413,996.17/87,400.83
  6. Step 6: Final answer
    x = 67,132.25

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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.