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Finding the Fourth Proportional to 71,845.80, 99,138.10 and 41,630.84

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Solution

The fourth proportional to 71,845.80, 99,138.10 and 41,630.84 is: 57,445.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,845.80 : 99,138.10 = 41,630.84 : x
  2. Step 2: Convert to fraction form
    71,845.80/99,138.10 = 41,630.84/x
  3. Step 3: Cross multiply
    71,845.80x = 99,138.10 × 41,630.84
  4. Step 4: Simplify right side
    71,845.80x = 4,127,202,379.00
  5. Step 5: Solve for x
    x = 4,127,202,379.00/71,845.80
  6. Step 6: Final answer
    x = 57,445.28

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1.5x scale

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.