Home / 74,165.78-111,203.81-29,133.23

Finding the Fourth Proportional to 74,165.78, 111,203.81 and 29,133.23

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Solution

The fourth proportional to 74,165.78, 111,203.81 and 29,133.23 is: 43,682.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,165.78 : 111,203.81 = 29,133.23 : x
  2. Step 2: Convert to fraction form
    74,165.78/111,203.81 = 29,133.23/x
  3. Step 3: Cross multiply
    74,165.78x = 111,203.81 × 29,133.23
  4. Step 4: Simplify right side
    74,165.78x = 3,239,725,471.92
  5. Step 5: Solve for x
    x = 3,239,725,471.92/74,165.78
  6. Step 6: Final answer
    x = 43,682.21

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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.