Home / 66,274.20-99,443.70-31,207.80

Finding the Fourth Proportional to 66,274.20, 99,443.70 and 31,207.80

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Solution

The fourth proportional to 66,274.20, 99,443.70 and 31,207.80 is: 46,826.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,274.20 : 99,443.70 = 31,207.80 : x
  2. Step 2: Convert to fraction form
    66,274.20/99,443.70 = 31,207.80/x
  3. Step 3: Cross multiply
    66,274.20x = 99,443.70 × 31,207.80
  4. Step 4: Simplify right side
    66,274.20x = 3,103,419,100.86
  5. Step 5: Solve for x
    x = 3,103,419,100.86/66,274.20
  6. Step 6: Final answer
    x = 46,826.96

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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.