Home / 83,015.39-124,449.12-30,412.57

Finding the Fourth Proportional to 83,015.39, 124,449.12 and 30,412.57

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Solution

The fourth proportional to 83,015.39, 124,449.12 and 30,412.57 is: 45,591.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,015.39 : 124,449.12 = 30,412.57 : x
  2. Step 2: Convert to fraction form
    83,015.39/124,449.12 = 30,412.57/x
  3. Step 3: Cross multiply
    83,015.39x = 124,449.12 × 30,412.57
  4. Step 4: Simplify right side
    83,015.39x = 3,784,817,573.44
  5. Step 5: Solve for x
    x = 3,784,817,573.44/83,015.39
  6. Step 6: Final answer
    x = 45,591.76

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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.