Home / 81,818.18-122,713.60-22,659.84

Finding the Fourth Proportional to 81,818.18, 122,713.60 and 22,659.84

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Solution

The fourth proportional to 81,818.18, 122,713.60 and 22,659.84 is: 33,985.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,818.18 : 122,713.60 = 22,659.84 : x
  2. Step 2: Convert to fraction form
    81,818.18/122,713.60 = 22,659.84/x
  3. Step 3: Cross multiply
    81,818.18x = 122,713.60 × 22,659.84
  4. Step 4: Simplify right side
    81,818.18x = 2,780,670,541.82
  5. Step 5: Solve for x
    x = 2,780,670,541.82/81,818.18
  6. Step 6: Final answer
    x = 33,985.97

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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.