Home / 51,806.16-77,697.63-20,217.06

Finding the Fourth Proportional to 51,806.16, 77,697.63 and 20,217.06

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Solution

The fourth proportional to 51,806.16, 77,697.63 and 20,217.06 is: 30,321.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,806.16 : 77,697.63 = 20,217.06 : x
  2. Step 2: Convert to fraction form
    51,806.16/77,697.63 = 20,217.06/x
  3. Step 3: Cross multiply
    51,806.16x = 77,697.63 × 20,217.06
  4. Step 4: Simplify right side
    51,806.16x = 1,570,817,647.57
  5. Step 5: Solve for x
    x = 1,570,817,647.57/51,806.16
  6. Step 6: Final answer
    x = 30,321.06

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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.