Home / 79,122.15-118,684.43-25,813.89

Finding the Fourth Proportional to 79,122.15, 118,684.43 and 25,813.89

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Solution

The fourth proportional to 79,122.15, 118,684.43 and 25,813.89 is: 38,721.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,122.15 : 118,684.43 = 25,813.89 : x
  2. Step 2: Convert to fraction form
    79,122.15/118,684.43 = 25,813.89/x
  3. Step 3: Cross multiply
    79,122.15x = 118,684.43 × 25,813.89
  4. Step 4: Simplify right side
    79,122.15x = 3,063,706,691.66
  5. Step 5: Solve for x
    x = 3,063,706,691.66/79,122.15
  6. Step 6: Final answer
    x = 38,721.23

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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.