Home / 90,382.02-135,545.66-27,185.36

Finding the Fourth Proportional to 90,382.02, 135,545.66 and 27,185.36

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Solution

The fourth proportional to 90,382.02, 135,545.66 and 27,185.36 is: 40,769.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,382.02 : 135,545.66 = 27,185.36 : x
  2. Step 2: Convert to fraction form
    90,382.02/135,545.66 = 27,185.36/x
  3. Step 3: Cross multiply
    90,382.02x = 135,545.66 × 27,185.36
  4. Step 4: Simplify right side
    90,382.02x = 3,684,857,563.54
  5. Step 5: Solve for x
    x = 3,684,857,563.54/90,382.02
  6. Step 6: Final answer
    x = 40,769.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.