Home / 66,865.91-100,298.66-16,945.84

Finding the Fourth Proportional to 66,865.91, 100,298.66 and 16,945.84

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Solution

The fourth proportional to 66,865.91, 100,298.66 and 16,945.84 is: 25,418.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,865.91 : 100,298.66 = 16,945.84 : x
  2. Step 2: Convert to fraction form
    66,865.91/100,298.66 = 16,945.84/x
  3. Step 3: Cross multiply
    66,865.91x = 100,298.66 × 16,945.84
  4. Step 4: Simplify right side
    66,865.91x = 1,699,645,085.22
  5. Step 5: Solve for x
    x = 1,699,645,085.22/66,865.91
  6. Step 6: Final answer
    x = 25,418.71

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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.