Home / 75,785.29-113,678.33-19,621.46

Finding the Fourth Proportional to 75,785.29, 113,678.33 and 19,621.46

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Solution

The fourth proportional to 75,785.29, 113,678.33 and 19,621.46 is: 29,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,785.29 : 113,678.33 = 19,621.46 : x
  2. Step 2: Convert to fraction form
    75,785.29/113,678.33 = 19,621.46/x
  3. Step 3: Cross multiply
    75,785.29x = 113,678.33 × 19,621.46
  4. Step 4: Simplify right side
    75,785.29x = 2,230,534,991.05
  5. Step 5: Solve for x
    x = 2,230,534,991.05/75,785.29
  6. Step 6: Final answer
    x = 29,432.30

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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.