Home / 78,467.44-108,287.19-42,659.86

Finding the Fourth Proportional to 78,467.44, 108,287.19 and 42,659.86

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Solution

The fourth proportional to 78,467.44, 108,287.19 and 42,659.86 is: 58,871.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,467.44 : 108,287.19 = 42,659.86 : x
  2. Step 2: Convert to fraction form
    78,467.44/108,287.19 = 42,659.86/x
  3. Step 3: Cross multiply
    78,467.44x = 108,287.19 × 42,659.86
  4. Step 4: Simplify right side
    78,467.44x = 4,619,516,365.19
  5. Step 5: Solve for x
    x = 4,619,516,365.19/78,467.44
  6. Step 6: Final answer
    x = 58,871.76

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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.