Home / 52,680.32-79,020.56-21,515.57

Finding the Fourth Proportional to 52,680.32, 79,020.56 and 21,515.57

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Solution

The fourth proportional to 52,680.32, 79,020.56 and 21,515.57 is: 32,273.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,680.32 : 79,020.56 = 21,515.57 : x
  2. Step 2: Convert to fraction form
    52,680.32/79,020.56 = 21,515.57/x
  3. Step 3: Cross multiply
    52,680.32x = 79,020.56 × 21,515.57
  4. Step 4: Simplify right side
    52,680.32x = 1,700,172,390.12
  5. Step 5: Solve for x
    x = 1,700,172,390.12/52,680.32
  6. Step 6: Final answer
    x = 32,273.39

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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.