Home / 45,121.28-67,686.44-15,535.20

Finding the Fourth Proportional to 45,121.28, 67,686.44 and 15,535.20

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Solution

The fourth proportional to 45,121.28, 67,686.44 and 15,535.20 is: 23,304.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,121.28 : 67,686.44 = 15,535.20 : x
  2. Step 2: Convert to fraction form
    45,121.28/67,686.44 = 15,535.20/x
  3. Step 3: Cross multiply
    45,121.28x = 67,686.44 × 15,535.20
  4. Step 4: Simplify right side
    45,121.28x = 1,051,522,382.69
  5. Step 5: Solve for x
    x = 1,051,522,382.69/45,121.28
  6. Step 6: Final answer
    x = 23,304.36

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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.