Home / 79,274.02-118,911.42-20,109.82

Finding the Fourth Proportional to 79,274.02, 118,911.42 and 20,109.82

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Solution

The fourth proportional to 79,274.02, 118,911.42 and 20,109.82 is: 30,164.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,274.02 : 118,911.42 = 20,109.82 : x
  2. Step 2: Convert to fraction form
    79,274.02/118,911.42 = 20,109.82/x
  3. Step 3: Cross multiply
    79,274.02x = 118,911.42 × 20,109.82
  4. Step 4: Simplify right side
    79,274.02x = 2,391,287,252.14
  5. Step 5: Solve for x
    x = 2,391,287,252.14/79,274.02
  6. Step 6: Final answer
    x = 30,164.83

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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.