Home / 79,309.35-109,389.56-67,353.75

Finding the Fourth Proportional to 79,309.35, 109,389.56 and 67,353.75

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Solution

The fourth proportional to 79,309.35, 109,389.56 and 67,353.75 is: 92,899.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,309.35 : 109,389.56 = 67,353.75 : x
  2. Step 2: Convert to fraction form
    79,309.35/109,389.56 = 67,353.75/x
  3. Step 3: Cross multiply
    79,309.35x = 109,389.56 × 67,353.75
  4. Step 4: Simplify right side
    79,309.35x = 7,367,796,740.08
  5. Step 5: Solve for x
    x = 7,367,796,740.08/79,309.35
  6. Step 6: Final answer
    x = 92,899.47

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1.5x scale

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.