Home / 91,736.20-137,604.30-60,571.45

Finding the Fourth Proportional to 91,736.20, 137,604.30 and 60,571.45

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Solution

The fourth proportional to 91,736.20, 137,604.30 and 60,571.45 is: 90,857.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,736.20 : 137,604.30 = 60,571.45 : x
  2. Step 2: Convert to fraction form
    91,736.20/137,604.30 = 60,571.45/x
  3. Step 3: Cross multiply
    91,736.20x = 137,604.30 × 60,571.45
  4. Step 4: Simplify right side
    91,736.20x = 8,334,891,977.24
  5. Step 5: Solve for x
    x = 8,334,891,977.24/91,736.20
  6. Step 6: Final answer
    x = 90,857.18

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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.