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Finding the Fourth Proportional to 79,856.73, 110,147.02 and 64,750.03

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Solution

The fourth proportional to 79,856.73, 110,147.02 and 64,750.03 is: 89,310.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,856.73 : 110,147.02 = 64,750.03 : x
  2. Step 2: Convert to fraction form
    79,856.73/110,147.02 = 64,750.03/x
  3. Step 3: Cross multiply
    79,856.73x = 110,147.02 × 64,750.03
  4. Step 4: Simplify right side
    79,856.73x = 7,132,022,849.41
  5. Step 5: Solve for x
    x = 7,132,022,849.41/79,856.73
  6. Step 6: Final answer
    x = 89,310.23

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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.