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Finding the Fourth Proportional to 61,428.92, 92,047.38 and 42,745.46

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Solution

The fourth proportional to 61,428.92, 92,047.38 and 42,745.46 is: 64,051.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,428.92 : 92,047.38 = 42,745.46 : x
  2. Step 2: Convert to fraction form
    61,428.92/92,047.38 = 42,745.46/x
  3. Step 3: Cross multiply
    61,428.92x = 92,047.38 × 42,745.46
  4. Step 4: Simplify right side
    61,428.92x = 3,934,607,599.89
  5. Step 5: Solve for x
    x = 3,934,607,599.89/61,428.92
  6. Step 6: Final answer
    x = 64,051.39

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