Home / 89,629.16-123,687.27-49,342.05

Finding the Fourth Proportional to 89,629.16, 123,687.27 and 49,342.05

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Solution

The fourth proportional to 89,629.16, 123,687.27 and 49,342.05 is: 68,091.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,629.16 : 123,687.27 = 49,342.05 : x
  2. Step 2: Convert to fraction form
    89,629.16/123,687.27 = 49,342.05/x
  3. Step 3: Cross multiply
    89,629.16x = 123,687.27 × 49,342.05
  4. Step 4: Simplify right side
    89,629.16x = 6,102,983,460.70
  5. Step 5: Solve for x
    x = 6,102,983,460.70/89,629.16
  6. Step 6: Final answer
    x = 68,091.50

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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.