Home / 89,448.29-123,438.68-49,161.72

Finding the Fourth Proportional to 89,448.29, 123,438.68 and 49,161.72

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Solution

The fourth proportional to 89,448.29, 123,438.68 and 49,161.72 is: 67,843.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,448.29 : 123,438.68 = 49,161.72 : x
  2. Step 2: Convert to fraction form
    89,448.29/123,438.68 = 49,161.72/x
  3. Step 3: Cross multiply
    89,448.29x = 123,438.68 × 49,161.72
  4. Step 4: Simplify right side
    89,448.29x = 6,068,457,577.52
  5. Step 5: Solve for x
    x = 6,068,457,577.52/89,448.29
  6. Step 6: Final answer
    x = 67,843.20

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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.