Home / 317,743.11-476,614.27-81,085.79

Finding the Fourth Proportional to 317,743.11, 476,614.27 and 81,085.79

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Solution

The fourth proportional to 317,743.11, 476,614.27 and 81,085.79 is: 121,628.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,743.11 : 476,614.27 = 81,085.79 : x
  2. Step 2: Convert to fraction form
    317,743.11/476,614.27 = 81,085.79/x
  3. Step 3: Cross multiply
    317,743.11x = 476,614.27 × 81,085.79
  4. Step 4: Simplify right side
    317,743.11x = 38,646,645,901.12
  5. Step 5: Solve for x
    x = 38,646,645,901.12/317,743.11
  6. Step 6: Final answer
    x = 121,628.59

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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.