Home / 78,436.62-117,588.84-34,029.96

Finding the Fourth Proportional to 78,436.62, 117,588.84 and 34,029.96

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Solution

The fourth proportional to 78,436.62, 117,588.84 and 34,029.96 is: 51,016.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,436.62 : 117,588.84 = 34,029.96 : x
  2. Step 2: Convert to fraction form
    78,436.62/117,588.84 = 34,029.96/x
  3. Step 3: Cross multiply
    78,436.62x = 117,588.84 × 34,029.96
  4. Step 4: Simplify right side
    78,436.62x = 4,001,543,521.65
  5. Step 5: Solve for x
    x = 4,001,543,521.65/78,436.62
  6. Step 6: Final answer
    x = 51,016.27

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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.