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Finding the Fourth Proportional to 61.02, 92.03 and 57.73

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Solution

The fourth proportional to 61.02, 92.03 and 57.73 is: 87.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.02 : 92.03 = 57.73 : x
  2. Step 2: Convert to fraction form
    61.02/92.03 = 57.73/x
  3. Step 3: Cross multiply
    61.02x = 92.03 × 57.73
  4. Step 4: Simplify right side
    61.02x = 5,312.89
  5. Step 5: Solve for x
    x = 5,312.89/61.02
  6. Step 6: Final answer
    x = 87.07

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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.