Home / 81,076.02-111,637.20-73,472.87

Finding the Fourth Proportional to 81,076.02, 111,637.20 and 73,472.87

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Solution

The fourth proportional to 81,076.02, 111,637.20 and 73,472.87 is: 101,168.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,076.02 : 111,637.20 = 73,472.87 : x
  2. Step 2: Convert to fraction form
    81,076.02/111,637.20 = 73,472.87/x
  3. Step 3: Cross multiply
    81,076.02x = 111,637.20 × 73,472.87
  4. Step 4: Simplify right side
    81,076.02x = 8,202,304,924.58
  5. Step 5: Solve for x
    x = 8,202,304,924.58/81,076.02
  6. Step 6: Final answer
    x = 101,168.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.