Home / 89,637.90-123,699.27-49,350.81

Finding the Fourth Proportional to 89,637.90, 123,699.27 and 49,350.81

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Solution

The fourth proportional to 89,637.90, 123,699.27 and 49,350.81 is: 68,103.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,637.90 : 123,699.27 = 49,350.81 : x
  2. Step 2: Convert to fraction form
    89,637.90/123,699.27 = 49,350.81/x
  3. Step 3: Cross multiply
    89,637.90x = 123,699.27 × 49,350.81
  4. Step 4: Simplify right side
    89,637.90x = 6,104,659,170.91
  5. Step 5: Solve for x
    x = 6,104,659,170.91/89,637.90
  6. Step 6: Final answer
    x = 68,103.55

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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.