Home / 77,727.77-107,261.88-43,738.19

Finding the Fourth Proportional to 77,727.77, 107,261.88 and 43,738.19

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Solution

The fourth proportional to 77,727.77, 107,261.88 and 43,738.19 is: 60,357.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,727.77 : 107,261.88 = 43,738.19 : x
  2. Step 2: Convert to fraction form
    77,727.77/107,261.88 = 43,738.19/x
  3. Step 3: Cross multiply
    77,727.77x = 107,261.88 × 43,738.19
  4. Step 4: Simplify right side
    77,727.77x = 4,691,440,487.20
  5. Step 5: Solve for x
    x = 4,691,440,487.20/77,727.77
  6. Step 6: Final answer
    x = 60,357.33

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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.