Home / 78,057.84-117,105.39-25,467.38

Finding the Fourth Proportional to 78,057.84, 117,105.39 and 25,467.38

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Solution

The fourth proportional to 78,057.84, 117,105.39 and 25,467.38 is: 38,207.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,057.84 : 117,105.39 = 25,467.38 : x
  2. Step 2: Convert to fraction form
    78,057.84/117,105.39 = 25,467.38/x
  3. Step 3: Cross multiply
    78,057.84x = 117,105.39 × 25,467.38
  4. Step 4: Simplify right side
    78,057.84x = 2,982,366,881.65
  5. Step 5: Solve for x
    x = 2,982,366,881.65/78,057.84
  6. Step 6: Final answer
    x = 38,207.14

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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.