Home / 87,042.18-120,154.95-58,786.14

Finding the Fourth Proportional to 87,042.18, 120,154.95 and 58,786.14

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Solution

The fourth proportional to 87,042.18, 120,154.95 and 58,786.14 is: 81,149.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,042.18 : 120,154.95 = 58,786.14 : x
  2. Step 2: Convert to fraction form
    87,042.18/120,154.95 = 58,786.14/x
  3. Step 3: Cross multiply
    87,042.18x = 120,154.95 × 58,786.14
  4. Step 4: Simplify right side
    87,042.18x = 7,063,445,712.39
  5. Step 5: Solve for x
    x = 7,063,445,712.39/87,042.18
  6. Step 6: Final answer
    x = 81,149.69

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1.5x scale

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.