Home / 68,386.56-94,372.74-40,086.78

Finding the Fourth Proportional to 68,386.56, 94,372.74 and 40,086.78

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Solution

The fourth proportional to 68,386.56, 94,372.74 and 40,086.78 is: 55,319.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,386.56 : 94,372.74 = 40,086.78 : x
  2. Step 2: Convert to fraction form
    68,386.56/94,372.74 = 40,086.78/x
  3. Step 3: Cross multiply
    68,386.56x = 94,372.74 × 40,086.78
  4. Step 4: Simplify right side
    68,386.56x = 3,783,099,266.38
  5. Step 5: Solve for x
    x = 3,783,099,266.38/68,386.56
  6. Step 6: Final answer
    x = 55,319.34

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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.