Home / 49,733.20-74,872.04-45,378.64

Finding the Fourth Proportional to 49,733.20, 74,872.04 and 45,378.64

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Solution

The fourth proportional to 49,733.20, 74,872.04 and 45,378.64 is: 68,316.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,733.20 : 74,872.04 = 45,378.64 : x
  2. Step 2: Convert to fraction form
    49,733.20/74,872.04 = 45,378.64/x
  3. Step 3: Cross multiply
    49,733.20x = 74,872.04 × 45,378.64
  4. Step 4: Simplify right side
    49,733.20x = 3,397,591,349.23
  5. Step 5: Solve for x
    x = 3,397,591,349.23/49,733.20
  6. Step 6: Final answer
    x = 68,316.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.