Home / 78,544.36-117,820.32-25,952.68

Finding the Fourth Proportional to 78,544.36, 117,820.32 and 25,952.68

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Solution

The fourth proportional to 78,544.36, 117,820.32 and 25,952.68 is: 38,930.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,544.36 : 117,820.32 = 25,952.68 : x
  2. Step 2: Convert to fraction form
    78,544.36/117,820.32 = 25,952.68/x
  3. Step 3: Cross multiply
    78,544.36x = 117,820.32 × 25,952.68
  4. Step 4: Simplify right side
    78,544.36x = 3,057,753,062.46
  5. Step 5: Solve for x
    x = 3,057,753,062.46/78,544.36
  6. Step 6: Final answer
    x = 38,930.27

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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.