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Finding the Fourth Proportional to 53,819.63, 80,726.18 and 20,079.08

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Solution

The fourth proportional to 53,819.63, 80,726.18 and 20,079.08 is: 30,117.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,819.63 : 80,726.18 = 20,079.08 : x
  2. Step 2: Convert to fraction form
    53,819.63/80,726.18 = 20,079.08/x
  3. Step 3: Cross multiply
    53,819.63x = 80,726.18 × 20,079.08
  4. Step 4: Simplify right side
    53,819.63x = 1,620,907,678.33
  5. Step 5: Solve for x
    x = 1,620,907,678.33/53,819.63
  6. Step 6: Final answer
    x = 30,117.41

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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.