Home / 81,434.20-122,168.76-25,273.12

Finding the Fourth Proportional to 81,434.20, 122,168.76 and 25,273.12

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Solution

The fourth proportional to 81,434.20, 122,168.76 and 25,273.12 is: 37,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,434.20 : 122,168.76 = 25,273.12 : x
  2. Step 2: Convert to fraction form
    81,434.20/122,168.76 = 25,273.12/x
  3. Step 3: Cross multiply
    81,434.20x = 122,168.76 × 25,273.12
  4. Step 4: Simplify right side
    81,434.20x = 3,087,585,731.73
  5. Step 5: Solve for x
    x = 3,087,585,731.73/81,434.20
  6. Step 6: Final answer
    x = 37,915.10

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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.