Home / 81,849.06-122,794.98-25,690.95

Finding the Fourth Proportional to 81,849.06, 122,794.98 and 25,690.95

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Solution

The fourth proportional to 81,849.06, 122,794.98 and 25,690.95 is: 38,543.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,849.06 : 122,794.98 = 25,690.95 : x
  2. Step 2: Convert to fraction form
    81,849.06/122,794.98 = 25,690.95/x
  3. Step 3: Cross multiply
    81,849.06x = 122,794.98 × 25,690.95
  4. Step 4: Simplify right side
    81,849.06x = 3,154,719,691.43
  5. Step 5: Solve for x
    x = 3,154,719,691.43/81,849.06
  6. Step 6: Final answer
    x = 38,543.14

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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.