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Finding the Fourth Proportional to 93.95, 129.69 and 59.00

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Solution

The fourth proportional to 93.95, 129.69 and 59.00 is: 81.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    93.95 : 129.69 = 59.00 : x
  2. Step 2: Convert to fraction form
    93.95/129.69 = 59.00/x
  3. Step 3: Cross multiply
    93.95x = 129.69 × 59.00
  4. Step 4: Simplify right side
    93.95x = 7,651.06
  5. Step 5: Solve for x
    x = 7,651.06/93.95
  6. Step 6: Final answer
    x = 81.44

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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.