Home / 87,378.29-131,198.65-49,980.59

Finding the Fourth Proportional to 87,378.29, 131,198.65 and 49,980.59

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Solution

The fourth proportional to 87,378.29, 131,198.65 and 49,980.59 is: 75,045.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,378.29 : 131,198.65 = 49,980.59 : x
  2. Step 2: Convert to fraction form
    87,378.29/131,198.65 = 49,980.59/x
  3. Step 3: Cross multiply
    87,378.29x = 131,198.65 × 49,980.59
  4. Step 4: Simplify right side
    87,378.29x = 6,557,385,153.26
  5. Step 5: Solve for x
    x = 6,557,385,153.26/87,378.29
  6. Step 6: Final answer
    x = 75,045.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.