Home / 85,208.25-117,587.79-49,419.48

Finding the Fourth Proportional to 85,208.25, 117,587.79 and 49,419.48

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Solution

The fourth proportional to 85,208.25, 117,587.79 and 49,419.48 is: 68,199.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,208.25 : 117,587.79 = 49,419.48 : x
  2. Step 2: Convert to fraction form
    85,208.25/117,587.79 = 49,419.48/x
  3. Step 3: Cross multiply
    85,208.25x = 117,587.79 × 49,419.48
  4. Step 4: Simplify right side
    85,208.25x = 5,811,127,436.15
  5. Step 5: Solve for x
    x = 5,811,127,436.15/85,208.25
  6. Step 6: Final answer
    x = 68,199.12

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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.