Home / 75,179.49-103,637.83-57,243.36

Finding the Fourth Proportional to 75,179.49, 103,637.83 and 57,243.36

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Solution

The fourth proportional to 75,179.49, 103,637.83 and 57,243.36 is: 78,912.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,179.49 : 103,637.83 = 57,243.36 : x
  2. Step 2: Convert to fraction form
    75,179.49/103,637.83 = 57,243.36/x
  3. Step 3: Cross multiply
    75,179.49x = 103,637.83 × 57,243.36
  4. Step 4: Simplify right side
    75,179.49x = 5,932,577,382.21
  5. Step 5: Solve for x
    x = 5,932,577,382.21/75,179.49
  6. Step 6: Final answer
    x = 78,912.18

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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.