Home / 57,338.16-79,066.17-40,336.80

Finding the Fourth Proportional to 57,338.16, 79,066.17 and 40,336.80

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Solution

The fourth proportional to 57,338.16, 79,066.17 and 40,336.80 is: 55,622.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,338.16 : 79,066.17 = 40,336.80 : x
  2. Step 2: Convert to fraction form
    57,338.16/79,066.17 = 40,336.80/x
  3. Step 3: Cross multiply
    57,338.16x = 79,066.17 × 40,336.80
  4. Step 4: Simplify right side
    57,338.16x = 3,189,276,286.06
  5. Step 5: Solve for x
    x = 3,189,276,286.06/57,338.16
  6. Step 6: Final answer
    x = 55,622.23

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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.