Home / 87,391.00-120,591.18-51,100.93

Finding the Fourth Proportional to 87,391.00, 120,591.18 and 51,100.93

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Solution

The fourth proportional to 87,391.00, 120,591.18 and 51,100.93 is: 70,514.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,391.00 : 120,591.18 = 51,100.93 : x
  2. Step 2: Convert to fraction form
    87,391.00/120,591.18 = 51,100.93/x
  3. Step 3: Cross multiply
    87,391.00x = 120,591.18 × 51,100.93
  4. Step 4: Simplify right side
    87,391.00x = 6,162,320,920.21
  5. Step 5: Solve for x
    x = 6,162,320,920.21/87,391.00
  6. Step 6: Final answer
    x = 70,514.36

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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.