Home / 99,361.08-137,119.23-54,039.42

Finding the Fourth Proportional to 99,361.08, 137,119.23 and 54,039.42

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Solution

The fourth proportional to 99,361.08, 137,119.23 and 54,039.42 is: 74,574.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,361.08 : 137,119.23 = 54,039.42 : x
  2. Step 2: Convert to fraction form
    99,361.08/137,119.23 = 54,039.42/x
  3. Step 3: Cross multiply
    99,361.08x = 137,119.23 × 54,039.42
  4. Step 4: Simplify right side
    99,361.08x = 7,409,843,660.05
  5. Step 5: Solve for x
    x = 7,409,843,660.05/99,361.08
  6. Step 6: Final answer
    x = 74,574.91

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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.