Home / 89,610.38-123,642.48-51,862.76

Finding the Fourth Proportional to 89,610.38, 123,642.48 and 51,862.76

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Solution

The fourth proportional to 89,610.38, 123,642.48 and 51,862.76 is: 71,559.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,610.38 : 123,642.48 = 51,862.76 : x
  2. Step 2: Convert to fraction form
    89,610.38/123,642.48 = 51,862.76/x
  3. Step 3: Cross multiply
    89,610.38x = 123,642.48 × 51,862.76
  4. Step 4: Simplify right side
    89,610.38x = 6,412,440,266.04
  5. Step 5: Solve for x
    x = 6,412,440,266.04/89,610.38
  6. Step 6: Final answer
    x = 71,559.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.