Home / 79,380.14-109,544.21-43,570.76

Finding the Fourth Proportional to 79,380.14, 109,544.21 and 43,570.76

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Solution

The fourth proportional to 79,380.14, 109,544.21 and 43,570.76 is: 60,127.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,380.14 : 109,544.21 = 43,570.76 : x
  2. Step 2: Convert to fraction form
    79,380.14/109,544.21 = 43,570.76/x
  3. Step 3: Cross multiply
    79,380.14x = 109,544.21 × 43,570.76
  4. Step 4: Simplify right side
    79,380.14x = 4,772,923,991.59
  5. Step 5: Solve for x
    x = 4,772,923,991.59/79,380.14
  6. Step 6: Final answer
    x = 60,127.43

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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.