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Finding the Fourth Proportional to 65,108.52, 97,630.47 and 20,729.49

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Solution

The fourth proportional to 65,108.52, 97,630.47 and 20,729.49 is: 31,083.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,108.52 : 97,630.47 = 20,729.49 : x
  2. Step 2: Convert to fraction form
    65,108.52/97,630.47 = 20,729.49/x
  3. Step 3: Cross multiply
    65,108.52x = 97,630.47 × 20,729.49
  4. Step 4: Simplify right side
    65,108.52x = 2,023,829,851.56
  5. Step 5: Solve for x
    x = 2,023,829,851.56/65,108.52
  6. Step 6: Final answer
    x = 31,083.95

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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.