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Finding the Fourth Proportional to 82,751.52, 124,127.52 and 30,160.92

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Solution

The fourth proportional to 82,751.52, 124,127.52 and 30,160.92 is: 45,241.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,751.52 : 124,127.52 = 30,160.92 : x
  2. Step 2: Convert to fraction form
    82,751.52/124,127.52 = 30,160.92/x
  3. Step 3: Cross multiply
    82,751.52x = 124,127.52 × 30,160.92
  4. Step 4: Simplify right side
    82,751.52x = 3,743,800,200.52
  5. Step 5: Solve for x
    x = 3,743,800,200.52/82,751.52
  6. Step 6: Final answer
    x = 45,241.47

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1.5x scale

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.