Home / 83,934.30-115,778.70-51,674.40

Finding the Fourth Proportional to 83,934.30, 115,778.70 and 51,674.40

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Solution

The fourth proportional to 83,934.30, 115,778.70 and 51,674.40 is: 71,279.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,934.30 : 115,778.70 = 51,674.40 : x
  2. Step 2: Convert to fraction form
    83,934.30/115,778.70 = 51,674.40/x
  3. Step 3: Cross multiply
    83,934.30x = 115,778.70 × 51,674.40
  4. Step 4: Simplify right side
    83,934.30x = 5,982,794,855.28
  5. Step 5: Solve for x
    x = 5,982,794,855.28/83,934.30
  6. Step 6: Final answer
    x = 71,279.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.