Home / 68,911.32-95,090.22-38,699.88

Finding the Fourth Proportional to 68,911.32, 95,090.22 and 38,699.88

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Solution

The fourth proportional to 68,911.32, 95,090.22 and 38,699.88 is: 53,401.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,911.32 : 95,090.22 = 38,699.88 : x
  2. Step 2: Convert to fraction form
    68,911.32/95,090.22 = 38,699.88/x
  3. Step 3: Cross multiply
    68,911.32x = 95,090.22 × 38,699.88
  4. Step 4: Simplify right side
    68,911.32x = 3,679,980,103.17
  5. Step 5: Solve for x
    x = 3,679,980,103.17/68,911.32
  6. Step 6: Final answer
    x = 53,401.68

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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.