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Finding the Fourth Proportional to 79,119.76, 118,666.86 and 29,223.36

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Solution

The fourth proportional to 79,119.76, 118,666.86 and 29,223.36 is: 43,830.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,119.76 : 118,666.86 = 29,223.36 : x
  2. Step 2: Convert to fraction form
    79,119.76/118,666.86 = 29,223.36/x
  3. Step 3: Cross multiply
    79,119.76x = 118,666.86 × 29,223.36
  4. Step 4: Simplify right side
    79,119.76x = 3,467,844,369.85
  5. Step 5: Solve for x
    x = 3,467,844,369.85/79,119.76
  6. Step 6: Final answer
    x = 43,830.32

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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.