Home / 51,236.94-76,879.17-21,661.68

Finding the Fourth Proportional to 51,236.94, 76,879.17 and 21,661.68

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Solution

The fourth proportional to 51,236.94, 76,879.17 and 21,661.68 is: 32,502.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,236.94 : 76,879.17 = 21,661.68 : x
  2. Step 2: Convert to fraction form
    51,236.94/76,879.17 = 21,661.68/x
  3. Step 3: Cross multiply
    51,236.94x = 76,879.17 × 21,661.68
  4. Step 4: Simplify right side
    51,236.94x = 1,665,331,979.21
  5. Step 5: Solve for x
    x = 1,665,331,979.21/51,236.94
  6. Step 6: Final answer
    x = 32,502.57

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1.5x scale

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.