Home / 51,711.57-77,548.20-18,422.80

Finding the Fourth Proportional to 51,711.57, 77,548.20 and 18,422.80

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Solution

The fourth proportional to 51,711.57, 77,548.20 and 18,422.80 is: 27,627.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,711.57 : 77,548.20 = 18,422.80 : x
  2. Step 2: Convert to fraction form
    51,711.57/77,548.20 = 18,422.80/x
  3. Step 3: Cross multiply
    51,711.57x = 77,548.20 × 18,422.80
  4. Step 4: Simplify right side
    51,711.57x = 1,428,654,716.00
  5. Step 5: Solve for x
    x = 1,428,654,716.00/51,711.57
  6. Step 6: Final answer
    x = 27,627.37

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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.