Home / 51,517.28-77,303.28-20,352.80

Finding the Fourth Proportional to 51,517.28, 77,303.28 and 20,352.80

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Solution

The fourth proportional to 51,517.28, 77,303.28 and 20,352.80 is: 30,540.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,517.28 : 77,303.28 = 20,352.80 : x
  2. Step 2: Convert to fraction form
    51,517.28/77,303.28 = 20,352.80/x
  3. Step 3: Cross multiply
    51,517.28x = 77,303.28 × 20,352.80
  4. Step 4: Simplify right side
    51,517.28x = 1,573,338,197.18
  5. Step 5: Solve for x
    x = 1,573,338,197.18/51,517.28
  6. Step 6: Final answer
    x = 30,540.01

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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.