Home / 89,458.12-123,449.70-49,171.96

Finding the Fourth Proportional to 89,458.12, 123,449.70 and 49,171.96

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Solution

The fourth proportional to 89,458.12, 123,449.70 and 49,171.96 is: 67,855.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,458.12 : 123,449.70 = 49,171.96 : x
  2. Step 2: Convert to fraction form
    89,458.12/123,449.70 = 49,171.96/x
  3. Step 3: Cross multiply
    89,458.12x = 123,449.70 × 49,171.96
  4. Step 4: Simplify right side
    89,458.12x = 6,070,263,710.41
  5. Step 5: Solve for x
    x = 6,070,263,710.41/89,458.12
  6. Step 6: Final answer
    x = 67,855.93

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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.