Home / 85,078.15-117,393.50-49,261.97

Finding the Fourth Proportional to 85,078.15, 117,393.50 and 49,261.97

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Solution

The fourth proportional to 85,078.15, 117,393.50 and 49,261.97 is: 67,973.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,078.15 : 117,393.50 = 49,261.97 : x
  2. Step 2: Convert to fraction form
    85,078.15/117,393.50 = 49,261.97/x
  3. Step 3: Cross multiply
    85,078.15x = 117,393.50 × 49,261.97
  4. Step 4: Simplify right side
    85,078.15x = 5,783,035,491.83
  5. Step 5: Solve for x
    x = 5,783,035,491.83/85,078.15
  6. Step 6: Final answer
    x = 67,973.22

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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.