Home / 49,731.20-74,869.04-45,376.64

Finding the Fourth Proportional to 49,731.20, 74,869.04 and 45,376.64

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Solution

The fourth proportional to 49,731.20, 74,869.04 and 45,376.64 is: 68,313.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,731.20 : 74,869.04 = 45,376.64 : x
  2. Step 2: Convert to fraction form
    49,731.20/74,869.04 = 45,376.64/x
  3. Step 3: Cross multiply
    49,731.20x = 74,869.04 × 45,376.64
  4. Step 4: Simplify right side
    49,731.20x = 3,397,305,475.23
  5. Step 5: Solve for x
    x = 3,397,305,475.23/49,731.20
  6. Step 6: Final answer
    x = 68,313.36

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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.