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Finding the Fourth Proportional to 81,888.76, 122,833.15 and 22,724.45

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Solution

The fourth proportional to 81,888.76, 122,833.15 and 22,724.45 is: 34,086.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,888.76 : 122,833.15 = 22,724.45 : x
  2. Step 2: Convert to fraction form
    81,888.76/122,833.15 = 22,724.45/x
  3. Step 3: Cross multiply
    81,888.76x = 122,833.15 × 22,724.45
  4. Step 4: Simplify right side
    81,888.76x = 2,791,315,775.52
  5. Step 5: Solve for x
    x = 2,791,315,775.52/81,888.76
  6. Step 6: Final answer
    x = 34,086.68

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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.