Home / 79,619.64-109,872.36-43,806.30

Finding the Fourth Proportional to 79,619.64, 109,872.36 and 43,806.30

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Solution

The fourth proportional to 79,619.64, 109,872.36 and 43,806.30 is: 60,451.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,619.64 : 109,872.36 = 43,806.30 : x
  2. Step 2: Convert to fraction form
    79,619.64/109,872.36 = 43,806.30/x
  3. Step 3: Cross multiply
    79,619.64x = 109,872.36 × 43,806.30
  4. Step 4: Simplify right side
    79,619.64x = 4,813,101,563.87
  5. Step 5: Solve for x
    x = 4,813,101,563.87/79,619.64
  6. Step 6: Final answer
    x = 60,451.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.