Home / 67,634.69-101,464.79-20,876.63

Finding the Fourth Proportional to 67,634.69, 101,464.79 and 20,876.63

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Solution

The fourth proportional to 67,634.69, 101,464.79 and 20,876.63 is: 31,318.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,634.69 : 101,464.79 = 20,876.63 : x
  2. Step 2: Convert to fraction form
    67,634.69/101,464.79 = 20,876.63/x
  3. Step 3: Cross multiply
    67,634.69x = 101,464.79 × 20,876.63
  4. Step 4: Simplify right side
    67,634.69x = 2,118,242,267.15
  5. Step 5: Solve for x
    x = 2,118,242,267.15/67,634.69
  6. Step 6: Final answer
    x = 31,318.88

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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.