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Finding the Fourth Proportional to 86,282.52, 119,028.08 and 55,647.51

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Solution

The fourth proportional to 86,282.52, 119,028.08 and 55,647.51 is: 76,766.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,282.52 : 119,028.08 = 55,647.51 : x
  2. Step 2: Convert to fraction form
    86,282.52/119,028.08 = 55,647.51/x
  3. Step 3: Cross multiply
    86,282.52x = 119,028.08 × 55,647.51
  4. Step 4: Simplify right side
    86,282.52x = 6,623,615,964.84
  5. Step 5: Solve for x
    x = 6,623,615,964.84/86,282.52
  6. Step 6: Final answer
    x = 76,766.61

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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.