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Finding the Fourth Proportional to 61, 91.56 and 32.56

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Solution

The fourth proportional to 61, 91.56 and 32.56 is: 48.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61 : 91.56 = 32.56 : x
  2. Step 2: Convert to fraction form
    61/91.56 = 32.56/x
  3. Step 3: Cross multiply
    61x = 91.56 × 32.56
  4. Step 4: Simplify right side
    61x = 2,981.19
  5. Step 5: Solve for x
    x = 2,981.19/61
  6. Step 6: Final answer
    x = 48.87

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