Home / 68,418.40-94,390.56-39,733.16

Finding the Fourth Proportional to 68,418.40, 94,390.56 and 39,733.16

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Solution

The fourth proportional to 68,418.40, 94,390.56 and 39,733.16 is: 54,816.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,418.40 : 94,390.56 = 39,733.16 : x
  2. Step 2: Convert to fraction form
    68,418.40/94,390.56 = 39,733.16/x
  3. Step 3: Cross multiply
    68,418.40x = 94,390.56 × 39,733.16
  4. Step 4: Simplify right side
    68,418.40x = 3,750,435,222.97
  5. Step 5: Solve for x
    x = 3,750,435,222.97/68,418.40
  6. Step 6: Final answer
    x = 54,816.18

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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.