Home / 81,716.74-122,575.20-25,557.13

Finding the Fourth Proportional to 81,716.74, 122,575.20 and 25,557.13

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Solution

The fourth proportional to 81,716.74, 122,575.20 and 25,557.13 is: 38,335.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,716.74 : 122,575.20 = 25,557.13 : x
  2. Step 2: Convert to fraction form
    81,716.74/122,575.20 = 25,557.13/x
  3. Step 3: Cross multiply
    81,716.74x = 122,575.20 × 25,557.13
  4. Step 4: Simplify right side
    81,716.74x = 3,132,670,321.18
  5. Step 5: Solve for x
    x = 3,132,670,321.18/81,716.74
  6. Step 6: Final answer
    x = 38,335.72

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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.