Home / 87,032.25-120,104.63-49,309.05

Finding the Fourth Proportional to 87,032.25, 120,104.63 and 49,309.05

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Solution

The fourth proportional to 87,032.25, 120,104.63 and 49,309.05 is: 68,046.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,032.25 : 120,104.63 = 49,309.05 : x
  2. Step 2: Convert to fraction form
    87,032.25/120,104.63 = 49,309.05/x
  3. Step 3: Cross multiply
    87,032.25x = 120,104.63 × 49,309.05
  4. Step 4: Simplify right side
    87,032.25x = 5,922,244,959.36
  5. Step 5: Solve for x
    x = 5,922,244,959.36/87,032.25
  6. Step 6: Final answer
    x = 68,046.56

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1.5x scale

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.