Home / 51,974.20-77,961.30-43,809.40

Finding the Fourth Proportional to 51,974.20, 77,961.30 and 43,809.40

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Solution

The fourth proportional to 51,974.20, 77,961.30 and 43,809.40 is: 65,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,974.20 : 77,961.30 = 43,809.40 : x
  2. Step 2: Convert to fraction form
    51,974.20/77,961.30 = 43,809.40/x
  3. Step 3: Cross multiply
    51,974.20x = 77,961.30 × 43,809.40
  4. Step 4: Simplify right side
    51,974.20x = 3,415,437,776.22
  5. Step 5: Solve for x
    x = 3,415,437,776.22/51,974.20
  6. Step 6: Final answer
    x = 65,714.10

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Similar ratio
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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.