Home / 49,964.18-74,947.28-20,361.51

Finding the Fourth Proportional to 49,964.18, 74,947.28 and 20,361.51

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Solution

The fourth proportional to 49,964.18, 74,947.28 and 20,361.51 is: 30,542.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,964.18 : 74,947.28 = 20,361.51 : x
  2. Step 2: Convert to fraction form
    49,964.18/74,947.28 = 20,361.51/x
  3. Step 3: Cross multiply
    49,964.18x = 74,947.28 × 20,361.51
  4. Step 4: Simplify right side
    49,964.18x = 1,526,039,689.39
  5. Step 5: Solve for x
    x = 1,526,039,689.39/49,964.18
  6. Step 6: Final answer
    x = 30,542.68

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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.