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Finding the Fourth Proportional to 53,297.60, 79,816.80 and 25,563.20

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Solution

The fourth proportional to 53,297.60, 79,816.80 and 25,563.20 is: 38,282.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,297.60 : 79,816.80 = 25,563.20 : x
  2. Step 2: Convert to fraction form
    53,297.60/79,816.80 = 25,563.20/x
  3. Step 3: Cross multiply
    53,297.60x = 79,816.80 × 25,563.20
  4. Step 4: Simplify right side
    53,297.60x = 2,040,372,821.76
  5. Step 5: Solve for x
    x = 2,040,372,821.76/53,297.60
  6. Step 6: Final answer
    x = 38,282.64

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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.