Home / 52,680.38-79,020.65-21,515.63

Finding the Fourth Proportional to 52,680.38, 79,020.65 and 21,515.63

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Solution

The fourth proportional to 52,680.38, 79,020.65 and 21,515.63 is: 32,273.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,680.38 : 79,020.65 = 21,515.63 : x
  2. Step 2: Convert to fraction form
    52,680.38/79,020.65 = 21,515.63/x
  3. Step 3: Cross multiply
    52,680.38x = 79,020.65 × 21,515.63
  4. Step 4: Simplify right side
    52,680.38x = 1,700,179,067.76
  5. Step 5: Solve for x
    x = 1,700,179,067.76/52,680.38
  6. Step 6: Final answer
    x = 32,273.48

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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.