Home / 91,639.54-137,481.18-32,480.38

Finding the Fourth Proportional to 91,639.54, 137,481.18 and 32,480.38

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Solution

The fourth proportional to 91,639.54, 137,481.18 and 32,480.38 is: 48,728.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,639.54 : 137,481.18 = 32,480.38 : x
  2. Step 2: Convert to fraction form
    91,639.54/137,481.18 = 32,480.38/x
  3. Step 3: Cross multiply
    91,639.54x = 137,481.18 × 32,480.38
  4. Step 4: Simplify right side
    91,639.54x = 4,465,440,969.25
  5. Step 5: Solve for x
    x = 4,465,440,969.25/91,639.54
  6. Step 6: Final answer
    x = 48,728.32

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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.