Home / 78,837.60-108,796.08-50,543.36

Finding the Fourth Proportional to 78,837.60, 108,796.08 and 50,543.36

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Solution

The fourth proportional to 78,837.60, 108,796.08 and 50,543.36 is: 69,749.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,837.60 : 108,796.08 = 50,543.36 : x
  2. Step 2: Convert to fraction form
    78,837.60/108,796.08 = 50,543.36/x
  3. Step 3: Cross multiply
    78,837.60x = 108,796.08 × 50,543.36
  4. Step 4: Simplify right side
    78,837.60x = 5,498,919,438.03
  5. Step 5: Solve for x
    x = 5,498,919,438.03/78,837.60
  6. Step 6: Final answer
    x = 69,749.96

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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.