Home / 86,270.31-119,095.92-66,845.61

Finding the Fourth Proportional to 86,270.31, 119,095.92 and 66,845.61

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Solution

The fourth proportional to 86,270.31, 119,095.92 and 66,845.61 is: 92,280.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,270.31 : 119,095.92 = 66,845.61 : x
  2. Step 2: Convert to fraction form
    86,270.31/119,095.92 = 66,845.61/x
  3. Step 3: Cross multiply
    86,270.31x = 119,095.92 × 66,845.61
  4. Step 4: Simplify right side
    86,270.31x = 7,961,039,420.91
  5. Step 5: Solve for x
    x = 7,961,039,420.91/86,270.31
  6. Step 6: Final answer
    x = 92,280.18

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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.