Home / 87,825.56-121,167.78-50,077.94

Finding the Fourth Proportional to 87,825.56, 121,167.78 and 50,077.94

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Solution

The fourth proportional to 87,825.56, 121,167.78 and 50,077.94 is: 69,089.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,825.56 : 121,167.78 = 50,077.94 : x
  2. Step 2: Convert to fraction form
    87,825.56/121,167.78 = 50,077.94/x
  3. Step 3: Cross multiply
    87,825.56x = 121,167.78 × 50,077.94
  4. Step 4: Simplify right side
    87,825.56x = 6,067,832,816.77
  5. Step 5: Solve for x
    x = 6,067,832,816.77/87,825.56
  6. Step 6: Final answer
    x = 69,089.60

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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.