Home / 49,422.12-74,115.84-21,334.56

Finding the Fourth Proportional to 49,422.12, 74,115.84 and 21,334.56

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Solution

The fourth proportional to 49,422.12, 74,115.84 and 21,334.56 is: 31,994.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,422.12 : 74,115.84 = 21,334.56 : x
  2. Step 2: Convert to fraction form
    49,422.12/74,115.84 = 21,334.56/x
  3. Step 3: Cross multiply
    49,422.12x = 74,115.84 × 21,334.56
  4. Step 4: Simplify right side
    49,422.12x = 1,581,228,835.43
  5. Step 5: Solve for x
    x = 1,581,228,835.43/49,422.12
  6. Step 6: Final answer
    x = 31,994.35

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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.