Home / 81,213.11-121,837.05-24,291.48

Finding the Fourth Proportional to 81,213.11, 121,837.05 and 24,291.48

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Solution

The fourth proportional to 81,213.11, 121,837.05 and 24,291.48 is: 36,442.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,213.11 : 121,837.05 = 24,291.48 : x
  2. Step 2: Convert to fraction form
    81,213.11/121,837.05 = 24,291.48/x
  3. Step 3: Cross multiply
    81,213.11x = 121,837.05 × 24,291.48
  4. Step 4: Simplify right side
    81,213.11x = 2,959,602,308.88
  5. Step 5: Solve for x
    x = 2,959,602,308.88/81,213.11
  6. Step 6: Final answer
    x = 36,442.42

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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.