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Finding the Fourth Proportional to 78,838.58, 108,797.54 and 43,029.38

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Solution

The fourth proportional to 78,838.58, 108,797.54 and 43,029.38 is: 59,380.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,838.58 : 108,797.54 = 43,029.38 : x
  2. Step 2: Convert to fraction form
    78,838.58/108,797.54 = 43,029.38/x
  3. Step 3: Cross multiply
    78,838.58x = 108,797.54 × 43,029.38
  4. Step 4: Simplify right side
    78,838.58x = 4,681,489,932.59
  5. Step 5: Solve for x
    x = 4,681,489,932.59/78,838.58
  6. Step 6: Final answer
    x = 59,380.70

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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.