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Finding the Fourth Proportional to 79,984.76, 110,414.19 and 47,730.56

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Solution

The fourth proportional to 79,984.76, 110,414.19 and 47,730.56 is: 65,889.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,984.76 : 110,414.19 = 47,730.56 : x
  2. Step 2: Convert to fraction form
    79,984.76/110,414.19 = 47,730.56/x
  3. Step 3: Cross multiply
    79,984.76x = 110,414.19 × 47,730.56
  4. Step 4: Simplify right side
    79,984.76x = 5,270,130,568.58
  5. Step 5: Solve for x
    x = 5,270,130,568.58/79,984.76
  6. Step 6: Final answer
    x = 65,889.19

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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.