Home / 85,788.15-118,387.66-47,553.47

Finding the Fourth Proportional to 85,788.15, 118,387.66 and 47,553.47

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Solution

The fourth proportional to 85,788.15, 118,387.66 and 47,553.47 is: 65,623.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,788.15 : 118,387.66 = 47,553.47 : x
  2. Step 2: Convert to fraction form
    85,788.15/118,387.66 = 47,553.47/x
  3. Step 3: Cross multiply
    85,788.15x = 118,387.66 × 47,553.47
  4. Step 4: Simplify right side
    85,788.15x = 5,629,743,894.61
  5. Step 5: Solve for x
    x = 5,629,743,894.61/85,788.15
  6. Step 6: Final answer
    x = 65,623.79

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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.