Home / 79,409.28-109,636.08-49,226.70

Finding the Fourth Proportional to 79,409.28, 109,636.08 and 49,226.70

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Solution

The fourth proportional to 79,409.28, 109,636.08 and 49,226.70 is: 67,964.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,409.28 : 109,636.08 = 49,226.70 : x
  2. Step 2: Convert to fraction form
    79,409.28/109,636.08 = 49,226.70/x
  3. Step 3: Cross multiply
    79,409.28x = 109,636.08 × 49,226.70
  4. Step 4: Simplify right side
    79,409.28x = 5,397,022,419.34
  5. Step 5: Solve for x
    x = 5,397,022,419.34/79,409.28
  6. Step 6: Final answer
    x = 67,964.63

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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.