Home / 79,517.40-109,744.38-51,305.16

Finding the Fourth Proportional to 79,517.40, 109,744.38 and 51,305.16

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Solution

The fourth proportional to 79,517.40, 109,744.38 and 51,305.16 is: 70,807.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,517.40 : 109,744.38 = 51,305.16 : x
  2. Step 2: Convert to fraction form
    79,517.40/109,744.38 = 51,305.16/x
  3. Step 3: Cross multiply
    79,517.40x = 109,744.38 × 51,305.16
  4. Step 4: Simplify right side
    79,517.40x = 5,630,452,975.00
  5. Step 5: Solve for x
    x = 5,630,452,975.00/79,517.40
  6. Step 6: Final answer
    x = 70,807.81

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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.