Home / 79,209.32-109,405.97-64,119.02

Finding the Fourth Proportional to 79,209.32, 109,405.97 and 64,119.02

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Solution

The fourth proportional to 79,209.32, 109,405.97 and 64,119.02 is: 88,562.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,209.32 : 109,405.97 = 64,119.02 : x
  2. Step 2: Convert to fraction form
    79,209.32/109,405.97 = 64,119.02/x
  3. Step 3: Cross multiply
    79,209.32x = 109,405.97 × 64,119.02
  4. Step 4: Simplify right side
    79,209.32x = 7,015,002,710.92
  5. Step 5: Solve for x
    x = 7,015,002,710.92/79,209.32
  6. Step 6: Final answer
    x = 88,562.85

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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.