Home / 67,717.19-100,860.80-64,160.89

Finding the Fourth Proportional to 67,717.19, 100,860.80 and 64,160.89

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Solution

The fourth proportional to 67,717.19, 100,860.80 and 64,160.89 is: 95,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,717.19 : 100,860.80 = 64,160.89 : x
  2. Step 2: Convert to fraction form
    67,717.19/100,860.80 = 64,160.89/x
  3. Step 3: Cross multiply
    67,717.19x = 100,860.80 × 64,160.89
  4. Step 4: Simplify right side
    67,717.19x = 6,471,318,694.11
  5. Step 5: Solve for x
    x = 6,471,318,694.11/67,717.19
  6. Step 6: Final answer
    x = 95,563.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.