Home / 71,934.13-107,901.20-30,381.49

Finding the Fourth Proportional to 71,934.13, 107,901.20 and 30,381.49

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Solution

The fourth proportional to 71,934.13, 107,901.20 and 30,381.49 is: 45,572.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,934.13 : 107,901.20 = 30,381.49 : x
  2. Step 2: Convert to fraction form
    71,934.13/107,901.20 = 30,381.49/x
  3. Step 3: Cross multiply
    71,934.13x = 107,901.20 × 30,381.49
  4. Step 4: Simplify right side
    71,934.13x = 3,278,199,228.79
  5. Step 5: Solve for x
    x = 3,278,199,228.79/71,934.13
  6. Step 6: Final answer
    x = 45,572.24

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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.