Home / 91,938.10-137,907.15-32,775.70

Finding the Fourth Proportional to 91,938.10, 137,907.15 and 32,775.70

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Solution

The fourth proportional to 91,938.10, 137,907.15 and 32,775.70 is: 49,163.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,938.10 : 137,907.15 = 32,775.70 : x
  2. Step 2: Convert to fraction form
    91,938.10/137,907.15 = 32,775.70/x
  3. Step 3: Cross multiply
    91,938.10x = 137,907.15 × 32,775.70
  4. Step 4: Simplify right side
    91,938.10x = 4,520,003,376.26
  5. Step 5: Solve for x
    x = 4,520,003,376.26/91,938.10
  6. Step 6: Final answer
    x = 49,163.55

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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.