Home / 84,968.38-117,083.59-65,731.33

Finding the Fourth Proportional to 84,968.38, 117,083.59 and 65,731.33

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Solution

The fourth proportional to 84,968.38, 117,083.59 and 65,731.33 is: 90,575.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,968.38 : 117,083.59 = 65,731.33 : x
  2. Step 2: Convert to fraction form
    84,968.38/117,083.59 = 65,731.33/x
  3. Step 3: Cross multiply
    84,968.38x = 117,083.59 × 65,731.33
  4. Step 4: Simplify right side
    84,968.38x = 7,696,060,091.87
  5. Step 5: Solve for x
    x = 7,696,060,091.87/84,968.38
  6. Step 6: Final answer
    x = 90,575.58

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1.5x scale

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.