Home / 75,428.49-104,079.75-43,591.24

Finding the Fourth Proportional to 75,428.49, 104,079.75 and 43,591.24

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Solution

The fourth proportional to 75,428.49, 104,079.75 and 43,591.24 is: 60,149.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,428.49 : 104,079.75 = 43,591.24 : x
  2. Step 2: Convert to fraction form
    75,428.49/104,079.75 = 43,591.24/x
  3. Step 3: Cross multiply
    75,428.49x = 104,079.75 × 43,591.24
  4. Step 4: Simplify right side
    75,428.49x = 4,536,965,361.39
  5. Step 5: Solve for x
    x = 4,536,965,361.39/75,428.49
  6. Step 6: Final answer
    x = 60,149.23

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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.