Home / 51,131.79-76,596.17-39,986.28

Finding the Fourth Proportional to 51,131.79, 76,596.17 and 39,986.28

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Solution

The fourth proportional to 51,131.79, 76,596.17 and 39,986.28 is: 59,900.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,131.79 : 76,596.17 = 39,986.28 : x
  2. Step 2: Convert to fraction form
    51,131.79/76,596.17 = 39,986.28/x
  3. Step 3: Cross multiply
    51,131.79x = 76,596.17 × 39,986.28
  4. Step 4: Simplify right side
    51,131.79x = 3,062,795,700.62
  5. Step 5: Solve for x
    x = 3,062,795,700.62/51,131.79
  6. Step 6: Final answer
    x = 59,900.03

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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.