Home / 49,178.23-67,876.68-31,269.74

Finding the Fourth Proportional to 49,178.23, 67,876.68 and 31,269.74

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Solution

The fourth proportional to 49,178.23, 67,876.68 and 31,269.74 is: 43,159.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,178.23 : 67,876.68 = 31,269.74 : x
  2. Step 2: Convert to fraction form
    49,178.23/67,876.68 = 31,269.74/x
  3. Step 3: Cross multiply
    49,178.23x = 67,876.68 × 31,269.74
  4. Step 4: Simplify right side
    49,178.23x = 2,122,485,913.54
  5. Step 5: Solve for x
    x = 2,122,485,913.54/49,178.23
  6. Step 6: Final answer
    x = 43,159.06

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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.