Home / 83,829.87-125,741.57-28,425.87

Finding the Fourth Proportional to 83,829.87, 125,741.57 and 28,425.87

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Solution

The fourth proportional to 83,829.87, 125,741.57 and 28,425.87 is: 42,637.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,829.87 : 125,741.57 = 28,425.87 : x
  2. Step 2: Convert to fraction form
    83,829.87/125,741.57 = 28,425.87/x
  3. Step 3: Cross multiply
    83,829.87x = 125,741.57 × 28,425.87
  4. Step 4: Simplify right side
    83,829.87x = 3,574,313,380.29
  5. Step 5: Solve for x
    x = 3,574,313,380.29/83,829.87
  6. Step 6: Final answer
    x = 42,637.71

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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.