Home / 75,409.43-104,065.25-40,954.28

Finding the Fourth Proportional to 75,409.43, 104,065.25 and 40,954.28

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Solution

The fourth proportional to 75,409.43, 104,065.25 and 40,954.28 is: 56,517.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,409.43 : 104,065.25 = 40,954.28 : x
  2. Step 2: Convert to fraction form
    75,409.43/104,065.25 = 40,954.28/x
  3. Step 3: Cross multiply
    75,409.43x = 104,065.25 × 40,954.28
  4. Step 4: Simplify right side
    75,409.43x = 4,261,916,661.67
  5. Step 5: Solve for x
    x = 4,261,916,661.67/75,409.43
  6. Step 6: Final answer
    x = 56,517.03

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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.