Home / 87,042.94-120,144.90-56,832.95

Finding the Fourth Proportional to 87,042.94, 120,144.90 and 56,832.95

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Solution

The fourth proportional to 87,042.94, 120,144.90 and 56,832.95 is: 78,446.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,042.94 : 120,144.90 = 56,832.95 : x
  2. Step 2: Convert to fraction form
    87,042.94/120,144.90 = 56,832.95/x
  3. Step 3: Cross multiply
    87,042.94x = 120,144.90 × 56,832.95
  4. Step 4: Simplify right side
    87,042.94x = 6,828,189,297.37
  5. Step 5: Solve for x
    x = 6,828,189,297.37/87,042.94
  6. Step 6: Final answer
    x = 78,446.21

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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.