Home / 79,218.45-118,821.89-29,275.26

Finding the Fourth Proportional to 79,218.45, 118,821.89 and 29,275.26

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Solution

The fourth proportional to 79,218.45, 118,821.89 and 29,275.26 is: 43,910.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,218.45 : 118,821.89 = 29,275.26 : x
  2. Step 2: Convert to fraction form
    79,218.45/118,821.89 = 29,275.26/x
  3. Step 3: Cross multiply
    79,218.45x = 118,821.89 × 29,275.26
  4. Step 4: Simplify right side
    79,218.45x = 3,478,541,577.07
  5. Step 5: Solve for x
    x = 3,478,541,577.07/79,218.45
  6. Step 6: Final answer
    x = 43,910.75

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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.