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Finding the Fourth Proportional to 78,481.08, 108,303.42 and 44,496

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Solution

The fourth proportional to 78,481.08, 108,303.42 and 44,496 is: 61,404.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,481.08 : 108,303.42 = 44,496 : x
  2. Step 2: Convert to fraction form
    78,481.08/108,303.42 = 44,496/x
  3. Step 3: Cross multiply
    78,481.08x = 108,303.42 × 44,496
  4. Step 4: Simplify right side
    78,481.08x = 4,819,068,976.32
  5. Step 5: Solve for x
    x = 4,819,068,976.32/78,481.08
  6. Step 6: Final answer
    x = 61,404.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.