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Finding the Fourth Proportional to 40,751.43, 61,114.69 and 28,182

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Solution

The fourth proportional to 40,751.43, 61,114.69 and 28,182 is: 42,264.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,751.43 : 61,114.69 = 28,182 : x
  2. Step 2: Convert to fraction form
    40,751.43/61,114.69 = 28,182/x
  3. Step 3: Cross multiply
    40,751.43x = 61,114.69 × 28,182
  4. Step 4: Simplify right side
    40,751.43x = 1,722,334,193.58
  5. Step 5: Solve for x
    x = 1,722,334,193.58/40,751.43
  6. Step 6: Final answer
    x = 42,264.39

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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.