Home / 87,416.33-120,631.55-49,176.63

Finding the Fourth Proportional to 87,416.33, 120,631.55 and 49,176.63

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Solution

The fourth proportional to 87,416.33, 120,631.55 and 49,176.63 is: 67,862.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,416.33 : 120,631.55 = 49,176.63 : x
  2. Step 2: Convert to fraction form
    87,416.33/120,631.55 = 49,176.63/x
  3. Step 3: Cross multiply
    87,416.33x = 120,631.55 × 49,176.63
  4. Step 4: Simplify right side
    87,416.33x = 5,932,252,854.79
  5. Step 5: Solve for x
    x = 5,932,252,854.79/87,416.33
  6. Step 6: Final answer
    x = 67,862.07

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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.