Home / 51,479.04-77,219.32-20,314

Finding the Fourth Proportional to 51,479.04, 77,219.32 and 20,314

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Solution

The fourth proportional to 51,479.04, 77,219.32 and 20,314 is: 30,471.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,479.04 : 77,219.32 = 20,314 : x
  2. Step 2: Convert to fraction form
    51,479.04/77,219.32 = 20,314/x
  3. Step 3: Cross multiply
    51,479.04x = 77,219.32 × 20,314
  4. Step 4: Simplify right side
    51,479.04x = 1,568,633,266.48
  5. Step 5: Solve for x
    x = 1,568,633,266.48/51,479.04
  6. Step 6: Final answer
    x = 30,471.30

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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.