Home / 68,717.52-103,090.99-21,331.57

Finding the Fourth Proportional to 68,717.52, 103,090.99 and 21,331.57

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Solution

The fourth proportional to 68,717.52, 103,090.99 and 21,331.57 is: 32,001.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,717.52 : 103,090.99 = 21,331.57 : x
  2. Step 2: Convert to fraction form
    68,717.52/103,090.99 = 21,331.57/x
  3. Step 3: Cross multiply
    68,717.52x = 103,090.99 × 21,331.57
  4. Step 4: Simplify right side
    68,717.52x = 2,199,092,669.55
  5. Step 5: Solve for x
    x = 2,199,092,669.55/68,717.52
  6. Step 6: Final answer
    x = 32,001.92

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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.