Home / 90,132.48-124,377.80-49,843.84

Finding the Fourth Proportional to 90,132.48, 124,377.80 and 49,843.84

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Solution

The fourth proportional to 90,132.48, 124,377.80 and 49,843.84 is: 68,781.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,132.48 : 124,377.80 = 49,843.84 : x
  2. Step 2: Convert to fraction form
    90,132.48/124,377.80 = 49,843.84/x
  3. Step 3: Cross multiply
    90,132.48x = 124,377.80 × 49,843.84
  4. Step 4: Simplify right side
    90,132.48x = 6,199,467,162.75
  5. Step 5: Solve for x
    x = 6,199,467,162.75/90,132.48
  6. Step 6: Final answer
    x = 68,781.72

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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.