Home / 51,591.70-77,314.56-21,979.72

Finding the Fourth Proportional to 51,591.70, 77,314.56 and 21,979.72

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Solution

The fourth proportional to 51,591.70, 77,314.56 and 21,979.72 is: 32,938.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,591.70 : 77,314.56 = 21,979.72 : x
  2. Step 2: Convert to fraction form
    51,591.70/77,314.56 = 21,979.72/x
  3. Step 3: Cross multiply
    51,591.70x = 77,314.56 × 21,979.72
  4. Step 4: Simplify right side
    51,591.70x = 1,699,352,380.72
  5. Step 5: Solve for x
    x = 1,699,352,380.72/51,591.70
  6. Step 6: Final answer
    x = 32,938.48

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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.