Home / 49,178.17-67,876.60-31,269.68

Finding the Fourth Proportional to 49,178.17, 67,876.60 and 31,269.68

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Solution

The fourth proportional to 49,178.17, 67,876.60 and 31,269.68 is: 43,158.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,178.17 : 67,876.60 = 31,269.68 : x
  2. Step 2: Convert to fraction form
    49,178.17/67,876.60 = 31,269.68/x
  3. Step 3: Cross multiply
    49,178.17x = 67,876.60 × 31,269.68
  4. Step 4: Simplify right side
    49,178.17x = 2,122,479,222.11
  5. Step 5: Solve for x
    x = 2,122,479,222.11/49,178.17
  6. Step 6: Final answer
    x = 43,158.98

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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.