Home / 89,933.88-134,787.40-45,571.80

Finding the Fourth Proportional to 89,933.88, 134,787.40 and 45,571.80

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Solution

The fourth proportional to 89,933.88, 134,787.40 and 45,571.80 is: 68,300.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,933.88 : 134,787.40 = 45,571.80 : x
  2. Step 2: Convert to fraction form
    89,933.88/134,787.40 = 45,571.80/x
  3. Step 3: Cross multiply
    89,933.88x = 134,787.40 × 45,571.80
  4. Step 4: Simplify right side
    89,933.88x = 6,142,504,435.32
  5. Step 5: Solve for x
    x = 6,142,504,435.32/89,933.88
  6. Step 6: Final answer
    x = 68,300.23

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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.