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Finding the Fourth Proportional to 65,010.80, 97,487.40 and 29,961.20

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Solution

The fourth proportional to 65,010.80, 97,487.40 and 29,961.20 is: 44,928.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,010.80 : 97,487.40 = 29,961.20 : x
  2. Step 2: Convert to fraction form
    65,010.80/97,487.40 = 29,961.20/x
  3. Step 3: Cross multiply
    65,010.80x = 97,487.40 × 29,961.20
  4. Step 4: Simplify right side
    65,010.80x = 2,920,839,488.88
  5. Step 5: Solve for x
    x = 2,920,839,488.88/65,010.80
  6. Step 6: Final answer
    x = 44,928.53

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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.