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Finding the Fourth Proportional to 78,445.99, 117,676.77 and 25,124.58

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Solution

The fourth proportional to 78,445.99, 117,676.77 and 25,124.58 is: 37,689.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,445.99 : 117,676.77 = 25,124.58 : x
  2. Step 2: Convert to fraction form
    78,445.99/117,676.77 = 25,124.58/x
  3. Step 3: Cross multiply
    78,445.99x = 117,676.77 × 25,124.58
  4. Step 4: Simplify right side
    78,445.99x = 2,956,579,539.78
  5. Step 5: Solve for x
    x = 2,956,579,539.78/78,445.99
  6. Step 6: Final answer
    x = 37,689.36

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