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Finding the Fourth Proportional to 73.71, 101.58 and 62.61

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Solution

The fourth proportional to 73.71, 101.58 and 62.61 is: 86.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.71 : 101.58 = 62.61 : x
  2. Step 2: Convert to fraction form
    73.71/101.58 = 62.61/x
  3. Step 3: Cross multiply
    73.71x = 101.58 × 62.61
  4. Step 4: Simplify right side
    73.71x = 6,360.07
  5. Step 5: Solve for x
    x = 6,360.07/73.71
  6. Step 6: Final answer
    x = 86.28

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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.