Home / 81,397.59-122,049.27-25,222.74

Finding the Fourth Proportional to 81,397.59, 122,049.27 and 25,222.74

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Solution

The fourth proportional to 81,397.59, 122,049.27 and 25,222.74 is: 37,819.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,397.59 : 122,049.27 = 25,222.74 : x
  2. Step 2: Convert to fraction form
    81,397.59/122,049.27 = 25,222.74/x
  3. Step 3: Cross multiply
    81,397.59x = 122,049.27 × 25,222.74
  4. Step 4: Simplify right side
    81,397.59x = 3,078,417,004.40
  5. Step 5: Solve for x
    x = 3,078,417,004.40/81,397.59
  6. Step 6: Final answer
    x = 37,819.51

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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.