Home / 87,635.78-120,795.70-68,482.27

Finding the Fourth Proportional to 87,635.78, 120,795.70 and 68,482.27

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Solution

The fourth proportional to 87,635.78, 120,795.70 and 68,482.27 is: 94,394.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,635.78 : 120,795.70 = 68,482.27 : x
  2. Step 2: Convert to fraction form
    87,635.78/120,795.70 = 68,482.27/x
  3. Step 3: Cross multiply
    87,635.78x = 120,795.70 × 68,482.27
  4. Step 4: Simplify right side
    87,635.78x = 8,272,363,742.24
  5. Step 5: Solve for x
    x = 8,272,363,742.24/87,635.78
  6. Step 6: Final answer
    x = 94,394.82

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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.