Home / 99,361.12-137,118.92-54,039.52

Finding the Fourth Proportional to 99,361.12, 137,118.92 and 54,039.52

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Solution

The fourth proportional to 99,361.12, 137,118.92 and 54,039.52 is: 74,574.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,361.12 : 137,118.92 = 54,039.52 : x
  2. Step 2: Convert to fraction form
    99,361.12/137,118.92 = 54,039.52/x
  3. Step 3: Cross multiply
    99,361.12x = 137,118.92 × 54,039.52
  4. Step 4: Simplify right side
    99,361.12x = 7,409,840,619.72
  5. Step 5: Solve for x
    x = 7,409,840,619.72/99,361.12
  6. Step 6: Final answer
    x = 74,574.85

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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.