Home / 75,614.82-104,342.43-43,785.78

Finding the Fourth Proportional to 75,614.82, 104,342.43 and 43,785.78

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Solution

The fourth proportional to 75,614.82, 104,342.43 and 43,785.78 is: 60,420.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,614.82 : 104,342.43 = 43,785.78 : x
  2. Step 2: Convert to fraction form
    75,614.82/104,342.43 = 43,785.78/x
  3. Step 3: Cross multiply
    75,614.82x = 104,342.43 × 43,785.78
  4. Step 4: Simplify right side
    75,614.82x = 4,568,714,684.65
  5. Step 5: Solve for x
    x = 4,568,714,684.65/75,614.82
  6. Step 6: Final answer
    x = 60,420.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.