Home / 51,406.92-77,099.68-19,806.12

Finding the Fourth Proportional to 51,406.92, 77,099.68 and 19,806.12

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Solution

The fourth proportional to 51,406.92, 77,099.68 and 19,806.12 is: 29,705.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,406.92 : 77,099.68 = 19,806.12 : x
  2. Step 2: Convert to fraction form
    51,406.92/77,099.68 = 19,806.12/x
  3. Step 3: Cross multiply
    51,406.92x = 77,099.68 × 19,806.12
  4. Step 4: Simplify right side
    51,406.92x = 1,527,045,514.04
  5. Step 5: Solve for x
    x = 1,527,045,514.04/51,406.92
  6. Step 6: Final answer
    x = 29,705.06

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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.