Home / 89,837.64-123,982.92-49,559.40

Finding the Fourth Proportional to 89,837.64, 123,982.92 and 49,559.40

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Solution

The fourth proportional to 89,837.64, 123,982.92 and 49,559.40 is: 68,395.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,837.64 : 123,982.92 = 49,559.40 : x
  2. Step 2: Convert to fraction form
    89,837.64/123,982.92 = 49,559.40/x
  3. Step 3: Cross multiply
    89,837.64x = 123,982.92 × 49,559.40
  4. Step 4: Simplify right side
    89,837.64x = 6,144,519,125.45
  5. Step 5: Solve for x
    x = 6,144,519,125.45/89,837.64
  6. Step 6: Final answer
    x = 68,395.82

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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.