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Finding the Fourth Proportional to 93.07, 128.38 and 60.36

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Solution

The fourth proportional to 93.07, 128.38 and 60.36 is: 83.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93.07 : 128.38 = 60.36 : x
  2. Step 2: Convert to fraction form
    93.07/128.38 = 60.36/x
  3. Step 3: Cross multiply
    93.07x = 128.38 × 60.36
  4. Step 4: Simplify right side
    93.07x = 7,749.02
  5. Step 5: Solve for x
    x = 7,749.02/93.07
  6. Step 6: Final answer
    x = 83.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.