Home / 87,769.31-121,069.69-53,793.05

Finding the Fourth Proportional to 87,769.31, 121,069.69 and 53,793.05

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Solution

The fourth proportional to 87,769.31, 121,069.69 and 53,793.05 is: 74,202.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,769.31 : 121,069.69 = 53,793.05 : x
  2. Step 2: Convert to fraction form
    87,769.31/121,069.69 = 53,793.05/x
  3. Step 3: Cross multiply
    87,769.31x = 121,069.69 × 53,793.05
  4. Step 4: Simplify right side
    87,769.31x = 6,512,707,147.82
  5. Step 5: Solve for x
    x = 6,512,707,147.82/87,769.31
  6. Step 6: Final answer
    x = 74,202.56

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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.