Home / 52,138.11-78,195.09-31,084.05

Finding the Fourth Proportional to 52,138.11, 78,195.09 and 31,084.05

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Solution

The fourth proportional to 52,138.11, 78,195.09 and 31,084.05 is: 46,618.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,138.11 : 78,195.09 = 31,084.05 : x
  2. Step 2: Convert to fraction form
    52,138.11/78,195.09 = 31,084.05/x
  3. Step 3: Cross multiply
    52,138.11x = 78,195.09 × 31,084.05
  4. Step 4: Simplify right side
    52,138.11x = 2,430,620,087.31
  5. Step 5: Solve for x
    x = 2,430,620,087.31/52,138.11
  6. Step 6: Final answer
    x = 46,618.88

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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.