Home / 85,428.45-117,871.29-49,596.87

Finding the Fourth Proportional to 85,428.45, 117,871.29 and 49,596.87

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Solution

The fourth proportional to 85,428.45, 117,871.29 and 49,596.87 is: 68,432.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,428.45 : 117,871.29 = 49,596.87 : x
  2. Step 2: Convert to fraction form
    85,428.45/117,871.29 = 49,596.87/x
  3. Step 3: Cross multiply
    85,428.45x = 117,871.29 × 49,596.87
  4. Step 4: Simplify right side
    85,428.45x = 5,846,047,046.86
  5. Step 5: Solve for x
    x = 5,846,047,046.86/85,428.45
  6. Step 6: Final answer
    x = 68,432.09

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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.