Home / 82,516.20-123,774.30-52,991.70

Finding the Fourth Proportional to 82,516.20, 123,774.30 and 52,991.70

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Solution

The fourth proportional to 82,516.20, 123,774.30 and 52,991.70 is: 79,487.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,516.20 : 123,774.30 = 52,991.70 : x
  2. Step 2: Convert to fraction form
    82,516.20/123,774.30 = 52,991.70/x
  3. Step 3: Cross multiply
    82,516.20x = 123,774.30 × 52,991.70
  4. Step 4: Simplify right side
    82,516.20x = 6,559,010,573.31
  5. Step 5: Solve for x
    x = 6,559,010,573.31/82,516.20
  6. Step 6: Final answer
    x = 79,487.55

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1.5x scale

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.