Home / 52,382.92-78,572.25-12,939.04

Finding the Fourth Proportional to 52,382.92, 78,572.25 and 12,939.04

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Solution

The fourth proportional to 52,382.92, 78,572.25 and 12,939.04 is: 19,408.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,382.92 : 78,572.25 = 12,939.04 : x
  2. Step 2: Convert to fraction form
    52,382.92/78,572.25 = 12,939.04/x
  3. Step 3: Cross multiply
    52,382.92x = 78,572.25 × 12,939.04
  4. Step 4: Simplify right side
    52,382.92x = 1,016,649,485.64
  5. Step 5: Solve for x
    x = 1,016,649,485.64/52,382.92
  6. Step 6: Final answer
    x = 19,408.03

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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.