Home / 89,687.12-123,769.08-49,401.06

Finding the Fourth Proportional to 89,687.12, 123,769.08 and 49,401.06

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Solution

The fourth proportional to 89,687.12, 123,769.08 and 49,401.06 is: 68,173.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,687.12 : 123,769.08 = 49,401.06 : x
  2. Step 2: Convert to fraction form
    89,687.12/123,769.08 = 49,401.06/x
  3. Step 3: Cross multiply
    89,687.12x = 123,769.08 × 49,401.06
  4. Step 4: Simplify right side
    89,687.12x = 6,114,323,747.22
  5. Step 5: Solve for x
    x = 6,114,323,747.22/89,687.12
  6. Step 6: Final answer
    x = 68,173.93

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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.