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Finding the Fourth Proportional to 95,851.20, 143,776.80 and 54,379.20

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Solution

The fourth proportional to 95,851.20, 143,776.80 and 54,379.20 is: 81,568.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,851.20 : 143,776.80 = 54,379.20 : x
  2. Step 2: Convert to fraction form
    95,851.20/143,776.80 = 54,379.20/x
  3. Step 3: Cross multiply
    95,851.20x = 143,776.80 × 54,379.20
  4. Step 4: Simplify right side
    95,851.20x = 7,818,467,362.56
  5. Step 5: Solve for x
    x = 7,818,467,362.56/95,851.20
  6. Step 6: Final answer
    x = 81,568.80

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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.