Home / 81,540.28-122,312.76-22,376.44

Finding the Fourth Proportional to 81,540.28, 122,312.76 and 22,376.44

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Solution

The fourth proportional to 81,540.28, 122,312.76 and 22,376.44 is: 33,565.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,540.28 : 122,312.76 = 22,376.44 : x
  2. Step 2: Convert to fraction form
    81,540.28/122,312.76 = 22,376.44/x
  3. Step 3: Cross multiply
    81,540.28x = 122,312.76 × 22,376.44
  4. Step 4: Simplify right side
    81,540.28x = 2,736,924,135.37
  5. Step 5: Solve for x
    x = 2,736,924,135.37/81,540.28
  6. Step 6: Final answer
    x = 33,565.30

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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.