Home / 45,981.96-68,965.92-21,960.12

Finding the Fourth Proportional to 45,981.96, 68,965.92 and 21,960.12

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Solution

The fourth proportional to 45,981.96, 68,965.92 and 21,960.12 is: 32,936.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,981.96 : 68,965.92 = 21,960.12 : x
  2. Step 2: Convert to fraction form
    45,981.96/68,965.92 = 21,960.12/x
  3. Step 3: Cross multiply
    45,981.96x = 68,965.92 × 21,960.12
  4. Step 4: Simplify right side
    45,981.96x = 1,514,499,879.11
  5. Step 5: Solve for x
    x = 1,514,499,879.11/45,981.96
  6. Step 6: Final answer
    x = 32,936.83

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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.