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Finding the Fourth Proportional to 78,873.33, 108,845.37 and 43,063.35

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Solution

The fourth proportional to 78,873.33, 108,845.37 and 43,063.35 is: 59,427.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,873.33 : 108,845.37 = 43,063.35 : x
  2. Step 2: Convert to fraction form
    78,873.33/108,845.37 = 43,063.35/x
  3. Step 3: Cross multiply
    78,873.33x = 108,845.37 × 43,063.35
  4. Step 4: Simplify right side
    78,873.33x = 4,687,246,264.19
  5. Step 5: Solve for x
    x = 4,687,246,264.19/78,873.33
  6. Step 6: Final answer
    x = 59,427.52

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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.