Home / 51,977.37-77,903.79-20,367.72

Finding the Fourth Proportional to 51,977.37, 77,903.79 and 20,367.72

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Solution

The fourth proportional to 51,977.37, 77,903.79 and 20,367.72 is: 30,527.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,977.37 : 77,903.79 = 20,367.72 : x
  2. Step 2: Convert to fraction form
    51,977.37/77,903.79 = 20,367.72/x
  3. Step 3: Cross multiply
    51,977.37x = 77,903.79 × 20,367.72
  4. Step 4: Simplify right side
    51,977.37x = 1,586,722,581.66
  5. Step 5: Solve for x
    x = 1,586,722,581.66/51,977.37
  6. Step 6: Final answer
    x = 30,527.18

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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.