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Finding the Fourth Proportional to 79,684.44, 119,730.66 and 60,147

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Solution

The fourth proportional to 79,684.44, 119,730.66 and 60,147 is: 90,374.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,684.44 : 119,730.66 = 60,147 : x
  2. Step 2: Convert to fraction form
    79,684.44/119,730.66 = 60,147/x
  3. Step 3: Cross multiply
    79,684.44x = 119,730.66 × 60,147
  4. Step 4: Simplify right side
    79,684.44x = 7,201,440,007.02
  5. Step 5: Solve for x
    x = 7,201,440,007.02/79,684.44
  6. Step 6: Final answer
    x = 90,374.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.