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Finding the Fourth Proportional to 53,841.25, 80,765.12 and 16,905.25

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Solution

The fourth proportional to 53,841.25, 80,765.12 and 16,905.25 is: 25,358.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,841.25 : 80,765.12 = 16,905.25 : x
  2. Step 2: Convert to fraction form
    53,841.25/80,765.12 = 16,905.25/x
  3. Step 3: Cross multiply
    53,841.25x = 80,765.12 × 16,905.25
  4. Step 4: Simplify right side
    53,841.25x = 1,365,354,544.88
  5. Step 5: Solve for x
    x = 1,365,354,544.88/53,841.25
  6. Step 6: Final answer
    x = 25,358.89

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1.5x scale

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.