Home / 89,278.12-123,203.47-48,992.56

Finding the Fourth Proportional to 89,278.12, 123,203.47 and 48,992.56

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Solution

The fourth proportional to 89,278.12, 123,203.47 and 48,992.56 is: 67,609.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,278.12 : 123,203.47 = 48,992.56 : x
  2. Step 2: Convert to fraction form
    89,278.12/123,203.47 = 48,992.56/x
  3. Step 3: Cross multiply
    89,278.12x = 123,203.47 × 48,992.56
  4. Step 4: Simplify right side
    89,278.12x = 6,036,053,396.18
  5. Step 5: Solve for x
    x = 6,036,053,396.18/89,278.12
  6. Step 6: Final answer
    x = 67,609.55

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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.