Home / 63,172.11-87,178.64-34,876.11

Finding the Fourth Proportional to 63,172.11, 87,178.64 and 34,876.11

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Solution

The fourth proportional to 63,172.11, 87,178.64 and 34,876.11 is: 48,129.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,172.11 : 87,178.64 = 34,876.11 : x
  2. Step 2: Convert to fraction form
    63,172.11/87,178.64 = 34,876.11/x
  3. Step 3: Cross multiply
    63,172.11x = 87,178.64 × 34,876.11
  4. Step 4: Simplify right side
    63,172.11x = 3,040,451,663.91
  5. Step 5: Solve for x
    x = 3,040,451,663.91/63,172.11
  6. Step 6: Final answer
    x = 48,129.65

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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.