Home / 91,911.42-137,780.94-35,787.54

Finding the Fourth Proportional to 91,911.42, 137,780.94 and 35,787.54

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Solution

The fourth proportional to 91,911.42, 137,780.94 and 35,787.54 is: 53,647.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,911.42 : 137,780.94 = 35,787.54 : x
  2. Step 2: Convert to fraction form
    91,911.42/137,780.94 = 35,787.54/x
  3. Step 3: Cross multiply
    91,911.42x = 137,780.94 × 35,787.54
  4. Step 4: Simplify right side
    91,911.42x = 4,930,840,901.49
  5. Step 5: Solve for x
    x = 4,930,840,901.49/91,911.42
  6. Step 6: Final answer
    x = 53,647.75

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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.