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Finding the Fourth Proportional to 73,520.11, 110,279.62 and 20,929.51

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Solution

The fourth proportional to 73,520.11, 110,279.62 and 20,929.51 is: 31,394.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,520.11 : 110,279.62 = 20,929.51 : x
  2. Step 2: Convert to fraction form
    73,520.11/110,279.62 = 20,929.51/x
  3. Step 3: Cross multiply
    73,520.11x = 110,279.62 × 20,929.51
  4. Step 4: Simplify right side
    73,520.11x = 2,308,098,409.59
  5. Step 5: Solve for x
    x = 2,308,098,409.59/73,520.11
  6. Step 6: Final answer
    x = 31,394.11

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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.