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Finding the Fourth Proportional to 78,896.44, 108,877.80 and 43,086.88

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Solution

The fourth proportional to 78,896.44, 108,877.80 and 43,086.88 is: 59,460.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,896.44 : 108,877.80 = 43,086.88 : x
  2. Step 2: Convert to fraction form
    78,896.44/108,877.80 = 43,086.88/x
  3. Step 3: Cross multiply
    78,896.44x = 108,877.80 × 43,086.88
  4. Step 4: Simplify right side
    78,896.44x = 4,691,204,703.26
  5. Step 5: Solve for x
    x = 4,691,204,703.26/78,896.44
  6. Step 6: Final answer
    x = 59,460.28

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1.5x scale

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.