Home / 78,556.92-117,853.83-25,966.40

Finding the Fourth Proportional to 78,556.92, 117,853.83 and 25,966.40

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Solution

The fourth proportional to 78,556.92, 117,853.83 and 25,966.40 is: 38,955.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,556.92 : 117,853.83 = 25,966.40 : x
  2. Step 2: Convert to fraction form
    78,556.92/117,853.83 = 25,966.40/x
  3. Step 3: Cross multiply
    78,556.92x = 117,853.83 × 25,966.40
  4. Step 4: Simplify right side
    78,556.92x = 3,060,239,691.31
  5. Step 5: Solve for x
    x = 3,060,239,691.31/78,556.92
  6. Step 6: Final answer
    x = 38,955.70

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1.5x scale

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.