Home / 51,281.28-76,921.44-16,220.96

Finding the Fourth Proportional to 51,281.28, 76,921.44 and 16,220.96

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Solution

The fourth proportional to 51,281.28, 76,921.44 and 16,220.96 is: 24,331.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,281.28 : 76,921.44 = 16,220.96 : x
  2. Step 2: Convert to fraction form
    51,281.28/76,921.44 = 16,220.96/x
  3. Step 3: Cross multiply
    51,281.28x = 76,921.44 × 16,220.96
  4. Step 4: Simplify right side
    51,281.28x = 1,247,739,601.38
  5. Step 5: Solve for x
    x = 1,247,739,601.38/51,281.28
  6. Step 6: Final answer
    x = 24,331.29

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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.