Home / 87,418.33-120,634.30-49,178.63

Finding the Fourth Proportional to 87,418.33, 120,634.30 and 49,178.63

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Solution

The fourth proportional to 87,418.33, 120,634.30 and 49,178.63 is: 67,864.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,418.33 : 120,634.30 = 49,178.63 : x
  2. Step 2: Convert to fraction form
    87,418.33/120,634.30 = 49,178.63/x
  3. Step 3: Cross multiply
    87,418.33x = 120,634.30 × 49,178.63
  4. Step 4: Simplify right side
    87,418.33x = 5,932,629,605.01
  5. Step 5: Solve for x
    x = 5,932,629,605.01/87,418.33
  6. Step 6: Final answer
    x = 67,864.82

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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.