Home / 78,556.62-117,853.38-25,966.10

Finding the Fourth Proportional to 78,556.62, 117,853.38 and 25,966.10

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Solution

The fourth proportional to 78,556.62, 117,853.38 and 25,966.10 is: 38,955.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,556.62 : 117,853.38 = 25,966.10 : x
  2. Step 2: Convert to fraction form
    78,556.62/117,853.38 = 25,966.10/x
  3. Step 3: Cross multiply
    78,556.62x = 117,853.38 × 25,966.10
  4. Step 4: Simplify right side
    78,556.62x = 3,060,193,189.74
  5. Step 5: Solve for x
    x = 3,060,193,189.74/78,556.62
  6. Step 6: Final answer
    x = 38,955.26

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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.