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Finding the Fourth Proportional to 86,988.99, 120,042.84 and 50,688.19

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Solution

The fourth proportional to 86,988.99, 120,042.84 and 50,688.19 is: 69,948.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,988.99 : 120,042.84 = 50,688.19 : x
  2. Step 2: Convert to fraction form
    86,988.99/120,042.84 = 50,688.19/x
  3. Step 3: Cross multiply
    86,988.99x = 120,042.84 × 50,688.19
  4. Step 4: Simplify right side
    86,988.99x = 6,084,754,282.06
  5. Step 5: Solve for x
    x = 6,084,754,282.06/86,988.99
  6. Step 6: Final answer
    x = 69,948.56

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