Home / 80,672.44-121,008.42-21,508.36

Finding the Fourth Proportional to 80,672.44, 121,008.42 and 21,508.36

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Solution

The fourth proportional to 80,672.44, 121,008.42 and 21,508.36 is: 32,262.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,672.44 : 121,008.42 = 21,508.36 : x
  2. Step 2: Convert to fraction form
    80,672.44/121,008.42 = 21,508.36/x
  3. Step 3: Cross multiply
    80,672.44x = 121,008.42 × 21,508.36
  4. Step 4: Simplify right side
    80,672.44x = 2,602,692,660.39
  5. Step 5: Solve for x
    x = 2,602,692,660.39/80,672.44
  6. Step 6: Final answer
    x = 32,262.48

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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.