Home / 52,159.28-71,979.80-28,286

Finding the Fourth Proportional to 52,159.28, 71,979.80 and 28,286

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Solution

The fourth proportional to 52,159.28, 71,979.80 and 28,286 is: 39,034.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,159.28 : 71,979.80 = 28,286 : x
  2. Step 2: Convert to fraction form
    52,159.28/71,979.80 = 28,286/x
  3. Step 3: Cross multiply
    52,159.28x = 71,979.80 × 28,286
  4. Step 4: Simplify right side
    52,159.28x = 2,036,020,622.80
  5. Step 5: Solve for x
    x = 2,036,020,622.80/52,159.28
  6. Step 6: Final answer
    x = 39,034.68

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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.