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Finding the Fourth Proportional to 62.30, 93.03 and 55.89

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Solution

The fourth proportional to 62.30, 93.03 and 55.89 is: 83.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.30 : 93.03 = 55.89 : x
  2. Step 2: Convert to fraction form
    62.30/93.03 = 55.89/x
  3. Step 3: Cross multiply
    62.30x = 93.03 × 55.89
  4. Step 4: Simplify right side
    62.30x = 5,199.55
  5. Step 5: Solve for x
    x = 5,199.55/62.30
  6. Step 6: Final answer
    x = 83.46

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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.