Home / 79,228.16-109,334.22-43,418.08

Finding the Fourth Proportional to 79,228.16, 109,334.22 and 43,418.08

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Solution

The fourth proportional to 79,228.16, 109,334.22 and 43,418.08 is: 59,916.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,228.16 : 109,334.22 = 43,418.08 : x
  2. Step 2: Convert to fraction form
    79,228.16/109,334.22 = 43,418.08/x
  3. Step 3: Cross multiply
    79,228.16x = 109,334.22 × 43,418.08
  4. Step 4: Simplify right side
    79,228.16x = 4,747,081,910.70
  5. Step 5: Solve for x
    x = 4,747,081,910.70/79,228.16
  6. Step 6: Final answer
    x = 59,916.60

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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.