Home / 47,977.20-66,191.04-30,072.96

Finding the Fourth Proportional to 47,977.20, 66,191.04 and 30,072.96

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Solution

The fourth proportional to 47,977.20, 66,191.04 and 30,072.96 is: 41,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,977.20 : 66,191.04 = 30,072.96 : x
  2. Step 2: Convert to fraction form
    47,977.20/66,191.04 = 30,072.96/x
  3. Step 3: Cross multiply
    47,977.20x = 66,191.04 × 30,072.96
  4. Step 4: Simplify right side
    47,977.20x = 1,990,560,498.28
  5. Step 5: Solve for x
    x = 1,990,560,498.28/47,977.20
  6. Step 6: Final answer
    x = 41,489.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.