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Finding the Fourth Proportional to 88.61, 132.83 and 42.93

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Solution

The fourth proportional to 88.61, 132.83 and 42.93 is: 64.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.61 : 132.83 = 42.93 : x
  2. Step 2: Convert to fraction form
    88.61/132.83 = 42.93/x
  3. Step 3: Cross multiply
    88.61x = 132.83 × 42.93
  4. Step 4: Simplify right side
    88.61x = 5,702.39
  5. Step 5: Solve for x
    x = 5,702.39/88.61
  6. Step 6: Final answer
    x = 64.35

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