Home / 87,480.86-120,661.38-58,394.55

Finding the Fourth Proportional to 87,480.86, 120,661.38 and 58,394.55

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Solution

The fourth proportional to 87,480.86, 120,661.38 and 58,394.55 is: 80,542.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,480.86 : 120,661.38 = 58,394.55 : x
  2. Step 2: Convert to fraction form
    87,480.86/120,661.38 = 58,394.55/x
  3. Step 3: Cross multiply
    87,480.86x = 120,661.38 × 58,394.55
  4. Step 4: Simplify right side
    87,480.86x = 7,045,966,987.48
  5. Step 5: Solve for x
    x = 7,045,966,987.48/87,480.86
  6. Step 6: Final answer
    x = 80,542.96

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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.