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Finding the Fourth Proportional to 78,481.44, 108,344.52 and 60,536.16

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Solution

The fourth proportional to 78,481.44, 108,344.52 and 60,536.16 is: 83,570.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,481.44 : 108,344.52 = 60,536.16 : x
  2. Step 2: Convert to fraction form
    78,481.44/108,344.52 = 60,536.16/x
  3. Step 3: Cross multiply
    78,481.44x = 108,344.52 × 60,536.16
  4. Step 4: Simplify right side
    78,481.44x = 6,558,761,197.84
  5. Step 5: Solve for x
    x = 6,558,761,197.84/78,481.44
  6. Step 6: Final answer
    x = 83,570.86

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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.