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Finding the Fourth Proportional to 75,649.55, 104,298.82 and 61,986.80

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Solution

The fourth proportional to 75,649.55, 104,298.82 and 61,986.80 is: 85,461.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,649.55 : 104,298.82 = 61,986.80 : x
  2. Step 2: Convert to fraction form
    75,649.55/104,298.82 = 61,986.80/x
  3. Step 3: Cross multiply
    75,649.55x = 104,298.82 × 61,986.80
  4. Step 4: Simplify right side
    75,649.55x = 6,465,149,574.08
  5. Step 5: Solve for x
    x = 6,465,149,574.08/75,649.55
  6. Step 6: Final answer
    x = 85,461.84

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