Home / 41,686.12-62,474.94-31,789

Finding the Fourth Proportional to 41,686.12, 62,474.94 and 31,789

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Solution

The fourth proportional to 41,686.12, 62,474.94 and 31,789 is: 47,642.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,686.12 : 62,474.94 = 31,789 : x
  2. Step 2: Convert to fraction form
    41,686.12/62,474.94 = 31,789/x
  3. Step 3: Cross multiply
    41,686.12x = 62,474.94 × 31,789
  4. Step 4: Simplify right side
    41,686.12x = 1,986,015,867.66
  5. Step 5: Solve for x
    x = 1,986,015,867.66/41,686.12
  6. Step 6: Final answer
    x = 47,642.14

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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.