Home / 91,453.68-137,205.18-38,127.95

Finding the Fourth Proportional to 91,453.68, 137,205.18 and 38,127.95

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Solution

The fourth proportional to 91,453.68, 137,205.18 and 38,127.95 is: 57,202.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,453.68 : 137,205.18 = 38,127.95 : x
  2. Step 2: Convert to fraction form
    91,453.68/137,205.18 = 38,127.95/x
  3. Step 3: Cross multiply
    91,453.68x = 137,205.18 × 38,127.95
  4. Step 4: Simplify right side
    91,453.68x = 5,231,351,556.76
  5. Step 5: Solve for x
    x = 5,231,351,556.76/91,453.68
  6. Step 6: Final answer
    x = 57,202.20

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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.