Home / 82,407.75-123,538.32-29,805.54

Finding the Fourth Proportional to 82,407.75, 123,538.32 and 29,805.54

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Solution

The fourth proportional to 82,407.75, 123,538.32 and 29,805.54 is: 44,681.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,407.75 : 123,538.32 = 29,805.54 : x
  2. Step 2: Convert to fraction form
    82,407.75/123,538.32 = 29,805.54/x
  3. Step 3: Cross multiply
    82,407.75x = 123,538.32 × 29,805.54
  4. Step 4: Simplify right side
    82,407.75x = 3,682,126,338.29
  5. Step 5: Solve for x
    x = 3,682,126,338.29/82,407.75
  6. Step 6: Final answer
    x = 44,681.80

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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.