Home / 87,934.53-121,342.46-49,697.53

Finding the Fourth Proportional to 87,934.53, 121,342.46 and 49,697.53

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Solution

The fourth proportional to 87,934.53, 121,342.46 and 49,697.53 is: 68,578.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,934.53 : 121,342.46 = 49,697.53 : x
  2. Step 2: Convert to fraction form
    87,934.53/121,342.46 = 49,697.53/x
  3. Step 3: Cross multiply
    87,934.53x = 121,342.46 × 49,697.53
  4. Step 4: Simplify right side
    87,934.53x = 6,030,420,546.12
  5. Step 5: Solve for x
    x = 6,030,420,546.12/87,934.53
  6. Step 6: Final answer
    x = 68,578.53

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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.