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Finding the Fourth Proportional to 71,510.80, 107,233.80 and 27,122.80

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Solution

The fourth proportional to 71,510.80, 107,233.80 and 27,122.80 is: 40,671.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,510.80 : 107,233.80 = 27,122.80 : x
  2. Step 2: Convert to fraction form
    71,510.80/107,233.80 = 27,122.80/x
  3. Step 3: Cross multiply
    71,510.80x = 107,233.80 × 27,122.80
  4. Step 4: Simplify right side
    71,510.80x = 2,908,480,910.64
  5. Step 5: Solve for x
    x = 2,908,480,910.64/71,510.80
  6. Step 6: Final answer
    x = 40,671.91

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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.