Home / 79,296.50-109,399.14-50,617.28

Finding the Fourth Proportional to 79,296.50, 109,399.14 and 50,617.28

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Solution

The fourth proportional to 79,296.50, 109,399.14 and 50,617.28 is: 69,832.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,296.50 : 109,399.14 = 50,617.28 : x
  2. Step 2: Convert to fraction form
    79,296.50/109,399.14 = 50,617.28/x
  3. Step 3: Cross multiply
    79,296.50x = 109,399.14 × 50,617.28
  4. Step 4: Simplify right side
    79,296.50x = 5,537,486,901.14
  5. Step 5: Solve for x
    x = 5,537,486,901.14/79,296.50
  6. Step 6: Final answer
    x = 69,832.68

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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.