Home / 86,121.75-118,851.96-47,885.18

Finding the Fourth Proportional to 86,121.75, 118,851.96 and 47,885.18

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Solution

The fourth proportional to 86,121.75, 118,851.96 and 47,885.18 is: 66,083.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,121.75 : 118,851.96 = 47,885.18 : x
  2. Step 2: Convert to fraction form
    86,121.75/118,851.96 = 47,885.18/x
  3. Step 3: Cross multiply
    86,121.75x = 118,851.96 × 47,885.18
  4. Step 4: Simplify right side
    86,121.75x = 5,691,246,903.69
  5. Step 5: Solve for x
    x = 5,691,246,903.69/86,121.75
  6. Step 6: Final answer
    x = 66,083.73

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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.