Home / 87,416.04-120,634.10-49,692.68

Finding the Fourth Proportional to 87,416.04, 120,634.10 and 49,692.68

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Solution

The fourth proportional to 87,416.04, 120,634.10 and 49,692.68 is: 68,575.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,416.04 : 120,634.10 = 49,692.68 : x
  2. Step 2: Convert to fraction form
    87,416.04/120,634.10 = 49,692.68/x
  3. Step 3: Cross multiply
    87,416.04x = 120,634.10 × 49,692.68
  4. Step 4: Simplify right side
    87,416.04x = 5,994,631,728.39
  5. Step 5: Solve for x
    x = 5,994,631,728.39/87,416.04
  6. Step 6: Final answer
    x = 68,575.88

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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.