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Finding the Fourth Proportional to 65.64, 99.01 and 62.76

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Solution

The fourth proportional to 65.64, 99.01 and 62.76 is: 94.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65.64 : 99.01 = 62.76 : x
  2. Step 2: Convert to fraction form
    65.64/99.01 = 62.76/x
  3. Step 3: Cross multiply
    65.64x = 99.01 × 62.76
  4. Step 4: Simplify right side
    65.64x = 6,213.87
  5. Step 5: Solve for x
    x = 6,213.87/65.64
  6. Step 6: Final answer
    x = 94.67

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.