Home / 89,675.60-123,743.18-55,214.86

Finding the Fourth Proportional to 89,675.60, 123,743.18 and 55,214.86

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Solution

The fourth proportional to 89,675.60, 123,743.18 and 55,214.86 is: 76,190.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,675.60 : 123,743.18 = 55,214.86 : x
  2. Step 2: Convert to fraction form
    89,675.60/123,743.18 = 55,214.86/x
  3. Step 3: Cross multiply
    89,675.60x = 123,743.18 × 55,214.86
  4. Step 4: Simplify right side
    89,675.60x = 6,832,462,083.58
  5. Step 5: Solve for x
    x = 6,832,462,083.58/89,675.60
  6. Step 6: Final answer
    x = 76,190.87

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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.