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Finding the Fourth Proportional to 79,127.31, 118,678.14 and 29,230.92

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Solution

The fourth proportional to 79,127.31, 118,678.14 and 29,230.92 is: 43,841.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,127.31 : 118,678.14 = 29,230.92 : x
  2. Step 2: Convert to fraction form
    79,127.31/118,678.14 = 29,230.92/x
  3. Step 3: Cross multiply
    79,127.31x = 118,678.14 × 29,230.92
  4. Step 4: Simplify right side
    79,127.31x = 3,469,071,216.09
  5. Step 5: Solve for x
    x = 3,469,071,216.09/79,127.31
  6. Step 6: Final answer
    x = 43,841.64

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1.5x scale

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.