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Finding the Fourth Proportional to 58.61, 87.49 and 50.92

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Solution

The fourth proportional to 58.61, 87.49 and 50.92 is: 76.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.61 : 87.49 = 50.92 : x
  2. Step 2: Convert to fraction form
    58.61/87.49 = 50.92/x
  3. Step 3: Cross multiply
    58.61x = 87.49 × 50.92
  4. Step 4: Simplify right side
    58.61x = 4,455.35
  5. Step 5: Solve for x
    x = 4,455.35/58.61
  6. Step 6: Final answer
    x = 76.02

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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.