Home / 67,631.13-101,455.92-28,179

Finding the Fourth Proportional to 67,631.13, 101,455.92 and 28,179

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Solution

The fourth proportional to 67,631.13, 101,455.92 and 28,179 is: 42,272.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,631.13 : 101,455.92 = 28,179 : x
  2. Step 2: Convert to fraction form
    67,631.13/101,455.92 = 28,179/x
  3. Step 3: Cross multiply
    67,631.13x = 101,455.92 × 28,179
  4. Step 4: Simplify right side
    67,631.13x = 2,858,926,369.68
  5. Step 5: Solve for x
    x = 2,858,926,369.68/67,631.13
  6. Step 6: Final answer
    x = 42,272.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.