Home / 51,816.16-77,665.92-20,614.96

Finding the Fourth Proportional to 51,816.16, 77,665.92 and 20,614.96

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Solution

The fourth proportional to 51,816.16, 77,665.92 and 20,614.96 is: 30,899.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,816.16 : 77,665.92 = 20,614.96 : x
  2. Step 2: Convert to fraction form
    51,816.16/77,665.92 = 20,614.96/x
  3. Step 3: Cross multiply
    51,816.16x = 77,665.92 × 20,614.96
  4. Step 4: Simplify right side
    51,816.16x = 1,601,079,834.16
  5. Step 5: Solve for x
    x = 1,601,079,834.16/51,816.16
  6. Step 6: Final answer
    x = 30,899.24

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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.