Home / 52,310.38-78,497.88-20,715.12

Finding the Fourth Proportional to 52,310.38, 78,497.88 and 20,715.12

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Solution

The fourth proportional to 52,310.38, 78,497.88 and 20,715.12 is: 31,085.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,310.38 : 78,497.88 = 20,715.12 : x
  2. Step 2: Convert to fraction form
    52,310.38/78,497.88 = 20,715.12/x
  3. Step 3: Cross multiply
    52,310.38x = 78,497.88 × 20,715.12
  4. Step 4: Simplify right side
    52,310.38x = 1,626,093,003.95
  5. Step 5: Solve for x
    x = 1,626,093,003.95/52,310.38
  6. Step 6: Final answer
    x = 31,085.47

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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.