Home / 51,809.10-77,694.60-18,520.14

Finding the Fourth Proportional to 51,809.10, 77,694.60 and 18,520.14

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Solution

The fourth proportional to 51,809.10, 77,694.60 and 18,520.14 is: 27,773.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,809.10 : 77,694.60 = 18,520.14 : x
  2. Step 2: Convert to fraction form
    51,809.10/77,694.60 = 18,520.14/x
  3. Step 3: Cross multiply
    51,809.10x = 77,694.60 × 18,520.14
  4. Step 4: Simplify right side
    51,809.10x = 1,438,914,869.24
  5. Step 5: Solve for x
    x = 1,438,914,869.24/51,809.10
  6. Step 6: Final answer
    x = 27,773.40

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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.