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Finding the Fourth Proportional to 67,760.12, 101,251.90 and 51,661.10

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Solution

The fourth proportional to 67,760.12, 101,251.90 and 51,661.10 is: 77,195.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,760.12 : 101,251.90 = 51,661.10 : x
  2. Step 2: Convert to fraction form
    67,760.12/101,251.90 = 51,661.10/x
  3. Step 3: Cross multiply
    67,760.12x = 101,251.90 × 51,661.10
  4. Step 4: Simplify right side
    67,760.12x = 5,230,784,531.09
  5. Step 5: Solve for x
    x = 5,230,784,531.09/67,760.12
  6. Step 6: Final answer
    x = 77,195.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.