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Finding the Fourth Proportional to 62.59, 86.29 and 47.02

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Solution

The fourth proportional to 62.59, 86.29 and 47.02 is: 64.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.59 : 86.29 = 47.02 : x
  2. Step 2: Convert to fraction form
    62.59/86.29 = 47.02/x
  3. Step 3: Cross multiply
    62.59x = 86.29 × 47.02
  4. Step 4: Simplify right side
    62.59x = 4,057.36
  5. Step 5: Solve for x
    x = 4,057.36/62.59
  6. Step 6: Final answer
    x = 64.82

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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.