Home / 47,639.12-71,380.92-45,818.96

Finding the Fourth Proportional to 47,639.12, 71,380.92 and 45,818.96

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Solution

The fourth proportional to 47,639.12, 71,380.92 and 45,818.96 is: 68,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,639.12 : 71,380.92 = 45,818.96 : x
  2. Step 2: Convert to fraction form
    47,639.12/71,380.92 = 45,818.96/x
  3. Step 3: Cross multiply
    47,639.12x = 71,380.92 × 45,818.96
  4. Step 4: Simplify right side
    47,639.12x = 3,270,599,518.24
  5. Step 5: Solve for x
    x = 3,270,599,518.24/47,639.12
  6. Step 6: Final answer
    x = 68,653.65

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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.