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Finding the Fourth Proportional to 80,762, 121,147.86 and 25,358

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Solution

The fourth proportional to 80,762, 121,147.86 and 25,358 is: 38,038.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,762 : 121,147.86 = 25,358 : x
  2. Step 2: Convert to fraction form
    80,762/121,147.86 = 25,358/x
  3. Step 3: Cross multiply
    80,762x = 121,147.86 × 25,358
  4. Step 4: Simplify right side
    80,762x = 3,072,067,433.88
  5. Step 5: Solve for x
    x = 3,072,067,433.88/80,762
  6. Step 6: Final answer
    x = 38,038.53

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