Home / 68,790.92-94,932.51-40,109.80

Finding the Fourth Proportional to 68,790.92, 94,932.51 and 40,109.80

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Solution

The fourth proportional to 68,790.92, 94,932.51 and 40,109.80 is: 55,352.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,790.92 : 94,932.51 = 40,109.80 : x
  2. Step 2: Convert to fraction form
    68,790.92/94,932.51 = 40,109.80/x
  3. Step 3: Cross multiply
    68,790.92x = 94,932.51 × 40,109.80
  4. Step 4: Simplify right side
    68,790.92x = 3,807,723,989.60
  5. Step 5: Solve for x
    x = 3,807,723,989.60/68,790.92
  6. Step 6: Final answer
    x = 55,352.13

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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.