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Finding the Fourth Proportional to 62.50, 93.26 and 53.86

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Solution

The fourth proportional to 62.50, 93.26 and 53.86 is: 80.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.50 : 93.26 = 53.86 : x
  2. Step 2: Convert to fraction form
    62.50/93.26 = 53.86/x
  3. Step 3: Cross multiply
    62.50x = 93.26 × 53.86
  4. Step 4: Simplify right side
    62.50x = 5,022.98
  5. Step 5: Solve for x
    x = 5,022.98/62.50
  6. Step 6: Final answer
    x = 80.37

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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.