Home / 79,710.20-109,995.86-45,716.94

Finding the Fourth Proportional to 79,710.20, 109,995.86 and 45,716.94

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Solution

The fourth proportional to 79,710.20, 109,995.86 and 45,716.94 is: 63,086.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,710.20 : 109,995.86 = 45,716.94 : x
  2. Step 2: Convert to fraction form
    79,710.20/109,995.86 = 45,716.94/x
  3. Step 3: Cross multiply
    79,710.20x = 109,995.86 × 45,716.94
  4. Step 4: Simplify right side
    79,710.20x = 5,028,674,131.87
  5. Step 5: Solve for x
    x = 5,028,674,131.87/79,710.20
  6. Step 6: Final answer
    x = 63,086.96

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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.