Home / 62,781.72-86,638.32-34,486.80

Finding the Fourth Proportional to 62,781.72, 86,638.32 and 34,486.80

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Solution

The fourth proportional to 62,781.72, 86,638.32 and 34,486.80 is: 47,591.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,781.72 : 86,638.32 = 34,486.80 : x
  2. Step 2: Convert to fraction form
    62,781.72/86,638.32 = 34,486.80/x
  3. Step 3: Cross multiply
    62,781.72x = 86,638.32 × 34,486.80
  4. Step 4: Simplify right side
    62,781.72x = 2,987,878,414.18
  5. Step 5: Solve for x
    x = 2,987,878,414.18/62,781.72
  6. Step 6: Final answer
    x = 47,591.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.