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Finding the Fourth Proportional to 58.35, 87.57 and 44.79

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Solution

The fourth proportional to 58.35, 87.57 and 44.79 is: 67.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.35 : 87.57 = 44.79 : x
  2. Step 2: Convert to fraction form
    58.35/87.57 = 44.79/x
  3. Step 3: Cross multiply
    58.35x = 87.57 × 44.79
  4. Step 4: Simplify right side
    58.35x = 3,922.26
  5. Step 5: Solve for x
    x = 3,922.26/58.35
  6. Step 6: Final answer
    x = 67.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.