Home / 87,305.27-120,482.12-49,579.79

Finding the Fourth Proportional to 87,305.27, 120,482.12 and 49,579.79

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Solution

The fourth proportional to 87,305.27, 120,482.12 and 49,579.79 is: 68,420.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,305.27 : 120,482.12 = 49,579.79 : x
  2. Step 2: Convert to fraction form
    87,305.27/120,482.12 = 49,579.79/x
  3. Step 3: Cross multiply
    87,305.27x = 120,482.12 × 49,579.79
  4. Step 4: Simplify right side
    87,305.27x = 5,973,477,960.46
  5. Step 5: Solve for x
    x = 5,973,477,960.46/87,305.27
  6. Step 6: Final answer
    x = 68,420.59

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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.