Home / 87,924.87-121,269.37-75,681.11

Finding the Fourth Proportional to 87,924.87, 121,269.37 and 75,681.11

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Solution

The fourth proportional to 87,924.87, 121,269.37 and 75,681.11 is: 104,382.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,924.87 : 121,269.37 = 75,681.11 : x
  2. Step 2: Convert to fraction form
    87,924.87/121,269.37 = 75,681.11/x
  3. Step 3: Cross multiply
    87,924.87x = 121,269.37 × 75,681.11
  4. Step 4: Simplify right side
    87,924.87x = 9,177,800,152.20
  5. Step 5: Solve for x
    x = 9,177,800,152.20/87,924.87
  6. Step 6: Final answer
    x = 104,382.30

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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.