Home / 51,790.55-77,674.56-18,512.91

Finding the Fourth Proportional to 51,790.55, 77,674.56 and 18,512.91

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Solution

The fourth proportional to 51,790.55, 77,674.56 and 18,512.91 is: 27,765.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,790.55 : 77,674.56 = 18,512.91 : x
  2. Step 2: Convert to fraction form
    51,790.55/77,674.56 = 18,512.91/x
  3. Step 3: Cross multiply
    51,790.55x = 77,674.56 × 18,512.91
  4. Step 4: Simplify right side
    51,790.55x = 1,437,982,138.57
  5. Step 5: Solve for x
    x = 1,437,982,138.57/51,790.55
  6. Step 6: Final answer
    x = 27,765.34

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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.