Home / 52,176.26-78,270.46-18,912

Finding the Fourth Proportional to 52,176.26, 78,270.46 and 18,912

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Solution

The fourth proportional to 52,176.26, 78,270.46 and 18,912 is: 28,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,176.26 : 78,270.46 = 18,912 : x
  2. Step 2: Convert to fraction form
    52,176.26/78,270.46 = 18,912/x
  3. Step 3: Cross multiply
    52,176.26x = 78,270.46 × 18,912
  4. Step 4: Simplify right side
    52,176.26x = 1,480,250,939.52
  5. Step 5: Solve for x
    x = 1,480,250,939.52/52,176.26
  6. Step 6: Final answer
    x = 28,370.20

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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.