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Finding the Fourth Proportional to 65,270.90, 97,841.55 and 30,149.30

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Solution

The fourth proportional to 65,270.90, 97,841.55 and 30,149.30 is: 45,194.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,270.90 : 97,841.55 = 30,149.30 : x
  2. Step 2: Convert to fraction form
    65,270.90/97,841.55 = 30,149.30/x
  3. Step 3: Cross multiply
    65,270.90x = 97,841.55 × 30,149.30
  4. Step 4: Simplify right side
    65,270.90x = 2,949,854,243.42
  5. Step 5: Solve for x
    x = 2,949,854,243.42/65,270.90
  6. Step 6: Final answer
    x = 45,194.02

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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.