Home / 82,537.26-123,808.32-20,207.76

Finding the Fourth Proportional to 82,537.26, 123,808.32 and 20,207.76

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Solution

The fourth proportional to 82,537.26, 123,808.32 and 20,207.76 is: 30,312.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,537.26 : 123,808.32 = 20,207.76 : x
  2. Step 2: Convert to fraction form
    82,537.26/123,808.32 = 20,207.76/x
  3. Step 3: Cross multiply
    82,537.26x = 123,808.32 × 20,207.76
  4. Step 4: Simplify right side
    82,537.26x = 2,501,888,816.56
  5. Step 5: Solve for x
    x = 2,501,888,816.56/82,537.26
  6. Step 6: Final answer
    x = 30,312.23

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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.