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Finding the Fourth Proportional to 86,600.40, 119,531.16 and 56,460.48

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Solution

The fourth proportional to 86,600.40, 119,531.16 and 56,460.48 is: 77,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,600.40 : 119,531.16 = 56,460.48 : x
  2. Step 2: Convert to fraction form
    86,600.40/119,531.16 = 56,460.48/x
  3. Step 3: Cross multiply
    86,600.40x = 119,531.16 × 56,460.48
  4. Step 4: Simplify right side
    86,600.40x = 6,748,786,668.56
  5. Step 5: Solve for x
    x = 6,748,786,668.56/86,600.40
  6. Step 6: Final answer
    x = 77,930.20

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