Home / 69,184.32-103,739.36-21,790.56

Finding the Fourth Proportional to 69,184.32, 103,739.36 and 21,790.56

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Solution

The fourth proportional to 69,184.32, 103,739.36 and 21,790.56 is: 32,674.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,184.32 : 103,739.36 = 21,790.56 : x
  2. Step 2: Convert to fraction form
    69,184.32/103,739.36 = 21,790.56/x
  3. Step 3: Cross multiply
    69,184.32x = 103,739.36 × 21,790.56
  4. Step 4: Simplify right side
    69,184.32x = 2,260,538,748.44
  5. Step 5: Solve for x
    x = 2,260,538,748.44/69,184.32
  6. Step 6: Final answer
    x = 32,674.15

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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.