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Finding the Fourth Proportional to 70.23, 104.69 and 62.48

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Solution

The fourth proportional to 70.23, 104.69 and 62.48 is: 93.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70.23 : 104.69 = 62.48 : x
  2. Step 2: Convert to fraction form
    70.23/104.69 = 62.48/x
  3. Step 3: Cross multiply
    70.23x = 104.69 × 62.48
  4. Step 4: Simplify right side
    70.23x = 6,541.45
  5. Step 5: Solve for x
    x = 6,541.45/70.23
  6. Step 6: Final answer
    x = 93.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.