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Finding the Fourth Proportional to 58.35, 79.82 and 58.08

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Solution

The fourth proportional to 58.35, 79.82 and 58.08 is: 79.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.35 : 79.82 = 58.08 : x
  2. Step 2: Convert to fraction form
    58.35/79.82 = 58.08/x
  3. Step 3: Cross multiply
    58.35x = 79.82 × 58.08
  4. Step 4: Simplify right side
    58.35x = 4,636.09
  5. Step 5: Solve for x
    x = 4,636.09/58.35
  6. Step 6: Final answer
    x = 79.45

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.