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Finding the Fourth Proportional to 58.77, 81.03 and 41.28

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Solution

The fourth proportional to 58.77, 81.03 and 41.28 is: 56.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.77 : 81.03 = 41.28 : x
  2. Step 2: Convert to fraction form
    58.77/81.03 = 41.28/x
  3. Step 3: Cross multiply
    58.77x = 81.03 × 41.28
  4. Step 4: Simplify right side
    58.77x = 3,344.92
  5. Step 5: Solve for x
    x = 3,344.92/58.77
  6. Step 6: Final answer
    x = 56.92

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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.