Home / 81,293.42-121,951.76-25,137.88

Finding the Fourth Proportional to 81,293.42, 121,951.76 and 25,137.88

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Solution

The fourth proportional to 81,293.42, 121,951.76 and 25,137.88 is: 37,710.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,293.42 : 121,951.76 = 25,137.88 : x
  2. Step 2: Convert to fraction form
    81,293.42/121,951.76 = 25,137.88/x
  3. Step 3: Cross multiply
    81,293.42x = 121,951.76 × 25,137.88
  4. Step 4: Simplify right side
    81,293.42x = 3,065,608,708.67
  5. Step 5: Solve for x
    x = 3,065,608,708.67/81,293.42
  6. Step 6: Final answer
    x = 37,710.42

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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.