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Finding the Fourth Proportional to 75,139.48, 103,691.82 and 43,307.68

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Solution

The fourth proportional to 75,139.48, 103,691.82 and 43,307.68 is: 59,764.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,139.48 : 103,691.82 = 43,307.68 : x
  2. Step 2: Convert to fraction form
    75,139.48/103,691.82 = 43,307.68/x
  3. Step 3: Cross multiply
    75,139.48x = 103,691.82 × 43,307.68
  4. Step 4: Simplify right side
    75,139.48x = 4,490,652,159.18
  5. Step 5: Solve for x
    x = 4,490,652,159.18/75,139.48
  6. Step 6: Final answer
    x = 59,764.22

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