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Finding the Fourth Proportional to 86,273.31, 119,100.06 and 66,848.61

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Solution

The fourth proportional to 86,273.31, 119,100.06 and 66,848.61 is: 92,284.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,273.31 : 119,100.06 = 66,848.61 : x
  2. Step 2: Convert to fraction form
    86,273.31/119,100.06 = 66,848.61/x
  3. Step 3: Cross multiply
    86,273.31x = 119,100.06 × 66,848.61
  4. Step 4: Simplify right side
    86,273.31x = 7,961,673,461.92
  5. Step 5: Solve for x
    x = 7,961,673,461.92/86,273.31
  6. Step 6: Final answer
    x = 92,284.32

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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.