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Finding the Fourth Proportional to 62.18, 93.12 and 53.08

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Solution

The fourth proportional to 62.18, 93.12 and 53.08 is: 79.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.18 : 93.12 = 53.08 : x
  2. Step 2: Convert to fraction form
    62.18/93.12 = 53.08/x
  3. Step 3: Cross multiply
    62.18x = 93.12 × 53.08
  4. Step 4: Simplify right side
    62.18x = 4,942.81
  5. Step 5: Solve for x
    x = 4,942.81/62.18
  6. Step 6: Final answer
    x = 79.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.