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Finding the Fourth Proportional to 53,840, 80,763.24 and 16,904

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Solution

The fourth proportional to 53,840, 80,763.24 and 16,904 is: 25,357.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,840 : 80,763.24 = 16,904 : x
  2. Step 2: Convert to fraction form
    53,840/80,763.24 = 16,904/x
  3. Step 3: Cross multiply
    53,840x = 80,763.24 × 16,904
  4. Step 4: Simplify right side
    53,840x = 1,365,221,808.96
  5. Step 5: Solve for x
    x = 1,365,221,808.96/53,840
  6. Step 6: Final answer
    x = 25,357.02

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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.