Home / 91,787.45-137,731.35-35,629.79

Finding the Fourth Proportional to 91,787.45, 137,731.35 and 35,629.79

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Solution

The fourth proportional to 91,787.45, 137,731.35 and 35,629.79 is: 53,464.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,787.45 : 137,731.35 = 35,629.79 : x
  2. Step 2: Convert to fraction form
    91,787.45/137,731.35 = 35,629.79/x
  3. Step 3: Cross multiply
    91,787.45x = 137,731.35 × 35,629.79
  4. Step 4: Simplify right side
    91,787.45x = 4,907,339,076.92
  5. Step 5: Solve for x
    x = 4,907,339,076.92/91,787.45
  6. Step 6: Final answer
    x = 53,464.16

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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.