Home / 49,439.36-74,172.92-19,878.01

Finding the Fourth Proportional to 49,439.36, 74,172.92 and 19,878.01

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Solution

The fourth proportional to 49,439.36, 74,172.92 and 19,878.01 is: 29,822.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,439.36 : 74,172.92 = 19,878.01 : x
  2. Step 2: Convert to fraction form
    49,439.36/74,172.92 = 19,878.01/x
  3. Step 3: Cross multiply
    49,439.36x = 74,172.92 × 19,878.01
  4. Step 4: Simplify right side
    49,439.36x = 1,474,409,760.67
  5. Step 5: Solve for x
    x = 1,474,409,760.67/49,439.36
  6. Step 6: Final answer
    x = 29,822.59

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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.