Home / 85,898.15-118,537.19-47,135.86

Finding the Fourth Proportional to 85,898.15, 118,537.19 and 47,135.86

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Solution

The fourth proportional to 85,898.15, 118,537.19 and 47,135.86 is: 65,046.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,898.15 : 118,537.19 = 47,135.86 : x
  2. Step 2: Convert to fraction form
    85,898.15/118,537.19 = 47,135.86/x
  3. Step 3: Cross multiply
    85,898.15x = 118,537.19 × 47,135.86
  4. Step 4: Simplify right side
    85,898.15x = 5,587,351,860.61
  5. Step 5: Solve for x
    x = 5,587,351,860.61/85,898.15
  6. Step 6: Final answer
    x = 65,046.24

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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.