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Finding the Fourth Proportional to 68.58, 95.06 and 62.50

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Solution

The fourth proportional to 68.58, 95.06 and 62.50 is: 86.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.58 : 95.06 = 62.50 : x
  2. Step 2: Convert to fraction form
    68.58/95.06 = 62.50/x
  3. Step 3: Cross multiply
    68.58x = 95.06 × 62.50
  4. Step 4: Simplify right side
    68.58x = 5,941.25
  5. Step 5: Solve for x
    x = 5,941.25/68.58
  6. Step 6: Final answer
    x = 86.63

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.