Home / 89,919.91-134,879.77-26,739.78

Finding the Fourth Proportional to 89,919.91, 134,879.77 and 26,739.78

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Solution

The fourth proportional to 89,919.91, 134,879.77 and 26,739.78 is: 40,109.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,919.91 : 134,879.77 = 26,739.78 : x
  2. Step 2: Convert to fraction form
    89,919.91/134,879.77 = 26,739.78/x
  3. Step 3: Cross multiply
    89,919.91x = 134,879.77 × 26,739.78
  4. Step 4: Simplify right side
    89,919.91x = 3,606,655,376.25
  5. Step 5: Solve for x
    x = 3,606,655,376.25/89,919.91
  6. Step 6: Final answer
    x = 40,109.64

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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.