Home / 89,273.38-123,254.97-55,317.90

Finding the Fourth Proportional to 89,273.38, 123,254.97 and 55,317.90

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Solution

The fourth proportional to 89,273.38, 123,254.97 and 55,317.90 is: 76,374.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,273.38 : 123,254.97 = 55,317.90 : x
  2. Step 2: Convert to fraction form
    89,273.38/123,254.97 = 55,317.90/x
  3. Step 3: Cross multiply
    89,273.38x = 123,254.97 × 55,317.90
  4. Step 4: Simplify right side
    89,273.38x = 6,818,205,677.33
  5. Step 5: Solve for x
    x = 6,818,205,677.33/89,273.38
  6. Step 6: Final answer
    x = 76,374.46

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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.