Home / 85,492.48-117,871.68-55,226.56

Finding the Fourth Proportional to 85,492.48, 117,871.68 and 55,226.56

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Solution

The fourth proportional to 85,492.48, 117,871.68 and 55,226.56 is: 76,142.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,492.48 : 117,871.68 = 55,226.56 : x
  2. Step 2: Convert to fraction form
    85,492.48/117,871.68 = 55,226.56/x
  3. Step 3: Cross multiply
    85,492.48x = 117,871.68 × 55,226.56
  4. Step 4: Simplify right side
    85,492.48x = 6,509,647,407.82
  5. Step 5: Solve for x
    x = 6,509,647,407.82/85,492.48
  6. Step 6: Final answer
    x = 76,142.92

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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.