Home / 89,763.36-123,871.96-49,480.87

Finding the Fourth Proportional to 89,763.36, 123,871.96 and 49,480.87

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Solution

The fourth proportional to 89,763.36, 123,871.96 and 49,480.87 is: 68,282.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,763.36 : 123,871.96 = 49,480.87 : x
  2. Step 2: Convert to fraction form
    89,763.36/123,871.96 = 49,480.87/x
  3. Step 3: Cross multiply
    89,763.36x = 123,871.96 × 49,480.87
  4. Step 4: Simplify right side
    89,763.36x = 6,129,292,055.51
  5. Step 5: Solve for x
    x = 6,129,292,055.51/89,763.36
  6. Step 6: Final answer
    x = 68,282.78

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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.