Home / 90,998.20-125,575.62-50,711.80

Finding the Fourth Proportional to 90,998.20, 125,575.62 and 50,711.80

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Solution

The fourth proportional to 90,998.20, 125,575.62 and 50,711.80 is: 69,981.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,998.20 : 125,575.62 = 50,711.80 : x
  2. Step 2: Convert to fraction form
    90,998.20/125,575.62 = 50,711.80/x
  3. Step 3: Cross multiply
    90,998.20x = 125,575.62 × 50,711.80
  4. Step 4: Simplify right side
    90,998.20x = 6,368,165,726.32
  5. Step 5: Solve for x
    x = 6,368,165,726.32/90,998.20
  6. Step 6: Final answer
    x = 69,981.23

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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.