Home / 86,213.67-118,982.22-47,972.15

Finding the Fourth Proportional to 86,213.67, 118,982.22 and 47,972.15

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Solution

The fourth proportional to 86,213.67, 118,982.22 and 47,972.15 is: 66,205.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,213.67 : 118,982.22 = 47,972.15 : x
  2. Step 2: Convert to fraction form
    86,213.67/118,982.22 = 47,972.15/x
  3. Step 3: Cross multiply
    86,213.67x = 118,982.22 × 47,972.15
  4. Step 4: Simplify right side
    86,213.67x = 5,707,832,576.55
  5. Step 5: Solve for x
    x = 5,707,832,576.55/86,213.67
  6. Step 6: Final answer
    x = 66,205.66

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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.