Home / 75,381.12-113,054.40-33,840

Finding the Fourth Proportional to 75,381.12, 113,054.40 and 33,840

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Solution

The fourth proportional to 75,381.12, 113,054.40 and 33,840 is: 50,752.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,381.12 : 113,054.40 = 33,840 : x
  2. Step 2: Convert to fraction form
    75,381.12/113,054.40 = 33,840/x
  3. Step 3: Cross multiply
    75,381.12x = 113,054.40 × 33,840
  4. Step 4: Simplify right side
    75,381.12x = 3,825,760,896
  5. Step 5: Solve for x
    x = 3,825,760,896/75,381.12
  6. Step 6: Final answer
    x = 50,752.24

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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.