Home / 69,178.20-103,767.32-53,406.26

Finding the Fourth Proportional to 69,178.20, 103,767.32 and 53,406.26

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Solution

The fourth proportional to 69,178.20, 103,767.32 and 53,406.26 is: 80,109.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,178.20 : 103,767.32 = 53,406.26 : x
  2. Step 2: Convert to fraction form
    69,178.20/103,767.32 = 53,406.26/x
  3. Step 3: Cross multiply
    69,178.20x = 103,767.32 × 53,406.26
  4. Step 4: Simplify right side
    69,178.20x = 5,541,824,475.23
  5. Step 5: Solve for x
    x = 5,541,824,475.23/69,178.20
  6. Step 6: Final answer
    x = 80,109.41

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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.