Home / 87,340.88-120,533.64-49,621.52

Finding the Fourth Proportional to 87,340.88, 120,533.64 and 49,621.52

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Solution

The fourth proportional to 87,340.88, 120,533.64 and 49,621.52 is: 68,479.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,340.88 : 120,533.64 = 49,621.52 : x
  2. Step 2: Convert to fraction form
    87,340.88/120,533.64 = 49,621.52/x
  3. Step 3: Cross multiply
    87,340.88x = 120,533.64 × 49,621.52
  4. Step 4: Simplify right side
    87,340.88x = 5,981,062,427.93
  5. Step 5: Solve for x
    x = 5,981,062,427.93/87,340.88
  6. Step 6: Final answer
    x = 68,479.53

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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.