Home / 75,988.53-113,982.66-19,828.40

Finding the Fourth Proportional to 75,988.53, 113,982.66 and 19,828.40

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Solution

The fourth proportional to 75,988.53, 113,982.66 and 19,828.40 is: 29,742.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,988.53 : 113,982.66 = 19,828.40 : x
  2. Step 2: Convert to fraction form
    75,988.53/113,982.66 = 19,828.40/x
  3. Step 3: Cross multiply
    75,988.53x = 113,982.66 × 19,828.40
  4. Step 4: Simplify right side
    75,988.53x = 2,260,093,205.63
  5. Step 5: Solve for x
    x = 2,260,093,205.63/75,988.53
  6. Step 6: Final answer
    x = 29,742.56

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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.