Home / 52,049.56-78,086.78-16,989.28

Finding the Fourth Proportional to 52,049.56, 78,086.78 and 16,989.28

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Solution

The fourth proportional to 52,049.56, 78,086.78 and 16,989.28 is: 25,487.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,049.56 : 78,086.78 = 16,989.28 : x
  2. Step 2: Convert to fraction form
    52,049.56/78,086.78 = 16,989.28/x
  3. Step 3: Cross multiply
    52,049.56x = 78,086.78 × 16,989.28
  4. Step 4: Simplify right side
    52,049.56x = 1,326,638,169.72
  5. Step 5: Solve for x
    x = 1,326,638,169.72/52,049.56
  6. Step 6: Final answer
    x = 25,487.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.