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Finding the Fourth Proportional to 45,104.77, 67,665.46 and 18,811.77

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Solution

The fourth proportional to 45,104.77, 67,665.46 and 18,811.77 is: 28,221.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,104.77 : 67,665.46 = 18,811.77 : x
  2. Step 2: Convert to fraction form
    45,104.77/67,665.46 = 18,811.77/x
  3. Step 3: Cross multiply
    45,104.77x = 67,665.46 × 18,811.77
  4. Step 4: Simplify right side
    45,104.77x = 1,272,907,070.46
  5. Step 5: Solve for x
    x = 1,272,907,070.46/45,104.77
  6. Step 6: Final answer
    x = 28,221.12

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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.