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Finding the Fourth Proportional to 86,084.76, 118,796.87 and 47,843.12

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Solution

The fourth proportional to 86,084.76, 118,796.87 and 47,843.12 is: 66,023.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,084.76 : 118,796.87 = 47,843.12 : x
  2. Step 2: Convert to fraction form
    86,084.76/118,796.87 = 47,843.12/x
  3. Step 3: Cross multiply
    86,084.76x = 118,796.87 × 47,843.12
  4. Step 4: Simplify right side
    86,084.76x = 5,683,612,073.83
  5. Step 5: Solve for x
    x = 5,683,612,073.83/86,084.76
  6. Step 6: Final answer
    x = 66,023.44

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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.