Home / 73,141.83-109,716.57-20,555.37

Finding the Fourth Proportional to 73,141.83, 109,716.57 and 20,555.37

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Solution

The fourth proportional to 73,141.83, 109,716.57 and 20,555.37 is: 30,834.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,141.83 : 109,716.57 = 20,555.37 : x
  2. Step 2: Convert to fraction form
    73,141.83/109,716.57 = 20,555.37/x
  3. Step 3: Cross multiply
    73,141.83x = 109,716.57 × 20,555.37
  4. Step 4: Simplify right side
    73,141.83x = 2,255,264,691.48
  5. Step 5: Solve for x
    x = 2,255,264,691.48/73,141.83
  6. Step 6: Final answer
    x = 30,834.13

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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.