Home / 79,191.38-109,293.21-45,204.72

Finding the Fourth Proportional to 79,191.38, 109,293.21 and 45,204.72

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Solution

The fourth proportional to 79,191.38, 109,293.21 and 45,204.72 is: 62,387.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,191.38 : 109,293.21 = 45,204.72 : x
  2. Step 2: Convert to fraction form
    79,191.38/109,293.21 = 45,204.72/x
  3. Step 3: Cross multiply
    79,191.38x = 109,293.21 × 45,204.72
  4. Step 4: Simplify right side
    79,191.38x = 4,940,568,955.95
  5. Step 5: Solve for x
    x = 4,940,568,955.95/79,191.38
  6. Step 6: Final answer
    x = 62,387.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.