Home / 68,679.82-94,767.33-40,004.20

Finding the Fourth Proportional to 68,679.82, 94,767.33 and 40,004.20

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Solution

The fourth proportional to 68,679.82, 94,767.33 and 40,004.20 is: 55,199.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,679.82 : 94,767.33 = 40,004.20 : x
  2. Step 2: Convert to fraction form
    68,679.82/94,767.33 = 40,004.20/x
  3. Step 3: Cross multiply
    68,679.82x = 94,767.33 × 40,004.20
  4. Step 4: Simplify right side
    68,679.82x = 3,791,091,022.77
  5. Step 5: Solve for x
    x = 3,791,091,022.77/68,679.82
  6. Step 6: Final answer
    x = 55,199.49

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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.