Home / 89,419.23-123,398.91-49,133.88

Finding the Fourth Proportional to 89,419.23, 123,398.91 and 49,133.88

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Solution

The fourth proportional to 89,419.23, 123,398.91 and 49,133.88 is: 67,804.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,419.23 : 123,398.91 = 49,133.88 : x
  2. Step 2: Convert to fraction form
    89,419.23/123,398.91 = 49,133.88/x
  3. Step 3: Cross multiply
    89,419.23x = 123,398.91 × 49,133.88
  4. Step 4: Simplify right side
    89,419.23x = 6,063,067,236.07
  5. Step 5: Solve for x
    x = 6,063,067,236.07/89,419.23
  6. Step 6: Final answer
    x = 67,804.96

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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.