Home / 87,305.46-120,482.37-49,579.98

Finding the Fourth Proportional to 87,305.46, 120,482.37 and 49,579.98

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Solution

The fourth proportional to 87,305.46, 120,482.37 and 49,579.98 is: 68,420.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,305.46 : 120,482.37 = 49,579.98 : x
  2. Step 2: Convert to fraction form
    87,305.46/120,482.37 = 49,579.98/x
  3. Step 3: Cross multiply
    87,305.46x = 120,482.37 × 49,579.98
  4. Step 4: Simplify right side
    87,305.46x = 5,973,513,379.67
  5. Step 5: Solve for x
    x = 5,973,513,379.67/87,305.46
  6. Step 6: Final answer
    x = 68,420.85

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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.