Home / 45,326.11-67,965.80-20,344.75

Finding the Fourth Proportional to 45,326.11, 67,965.80 and 20,344.75

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Solution

The fourth proportional to 45,326.11, 67,965.80 and 20,344.75 is: 30,506.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,326.11 : 67,965.80 = 20,344.75 : x
  2. Step 2: Convert to fraction form
    45,326.11/67,965.80 = 20,344.75/x
  3. Step 3: Cross multiply
    45,326.11x = 67,965.80 × 20,344.75
  4. Step 4: Simplify right side
    45,326.11x = 1,382,747,209.55
  5. Step 5: Solve for x
    x = 1,382,747,209.55/45,326.11
  6. Step 6: Final answer
    x = 30,506.64

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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.