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Finding the Fourth Proportional to 83,070.63, 114,664.82 and 66,105.99

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Solution

The fourth proportional to 83,070.63, 114,664.82 and 66,105.99 is: 91,248.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,070.63 : 114,664.82 = 66,105.99 : x
  2. Step 2: Convert to fraction form
    83,070.63/114,664.82 = 66,105.99/x
  3. Step 3: Cross multiply
    83,070.63x = 114,664.82 × 66,105.99
  4. Step 4: Simplify right side
    83,070.63x = 7,580,031,113.74
  5. Step 5: Solve for x
    x = 7,580,031,113.74/83,070.63
  6. Step 6: Final answer
    x = 91,248.03

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