Home / 51,268.68-70,743.57-28,605

Finding the Fourth Proportional to 51,268.68, 70,743.57 and 28,605

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Solution

The fourth proportional to 51,268.68, 70,743.57 and 28,605 is: 39,470.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,268.68 : 70,743.57 = 28,605 : x
  2. Step 2: Convert to fraction form
    51,268.68/70,743.57 = 28,605/x
  3. Step 3: Cross multiply
    51,268.68x = 70,743.57 × 28,605
  4. Step 4: Simplify right side
    51,268.68x = 2,023,619,819.85
  5. Step 5: Solve for x
    x = 2,023,619,819.85/51,268.68
  6. Step 6: Final answer
    x = 39,470.88

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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.