Home / 52,176.52-78,270.96-18,912.28

Finding the Fourth Proportional to 52,176.52, 78,270.96 and 18,912.28

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Solution

The fourth proportional to 52,176.52, 78,270.96 and 18,912.28 is: 28,370.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,176.52 : 78,270.96 = 18,912.28 : x
  2. Step 2: Convert to fraction form
    52,176.52/78,270.96 = 18,912.28/x
  3. Step 3: Cross multiply
    52,176.52x = 78,270.96 × 18,912.28
  4. Step 4: Simplify right side
    52,176.52x = 1,480,282,311.39
  5. Step 5: Solve for x
    x = 1,480,282,311.39/52,176.52
  6. Step 6: Final answer
    x = 28,370.66

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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.