Home / 68,418.34-94,402.13-39,721.48

Finding the Fourth Proportional to 68,418.34, 94,402.13 and 39,721.48

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Solution

The fourth proportional to 68,418.34, 94,402.13 and 39,721.48 is: 54,806.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,418.34 : 94,402.13 = 39,721.48 : x
  2. Step 2: Convert to fraction form
    68,418.34/94,402.13 = 39,721.48/x
  3. Step 3: Cross multiply
    68,418.34x = 94,402.13 × 39,721.48
  4. Step 4: Simplify right side
    68,418.34x = 3,749,791,884.14
  5. Step 5: Solve for x
    x = 3,749,791,884.14/68,418.34
  6. Step 6: Final answer
    x = 54,806.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.