Home / 89,687.23-123,768.48-49,401.08

Finding the Fourth Proportional to 89,687.23, 123,768.48 and 49,401.08

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Solution

The fourth proportional to 89,687.23, 123,768.48 and 49,401.08 is: 68,173.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,687.23 : 123,768.48 = 49,401.08 : x
  2. Step 2: Convert to fraction form
    89,687.23/123,768.48 = 49,401.08/x
  3. Step 3: Cross multiply
    89,687.23x = 123,768.48 × 49,401.08
  4. Step 4: Simplify right side
    89,687.23x = 6,114,296,581.96
  5. Step 5: Solve for x
    x = 6,114,296,581.96/89,687.23
  6. Step 6: Final answer
    x = 68,173.55

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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.