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Finding the Fourth Proportional to 58.25, 80.43 and 45.29

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Solution

The fourth proportional to 58.25, 80.43 and 45.29 is: 62.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.25 : 80.43 = 45.29 : x
  2. Step 2: Convert to fraction form
    58.25/80.43 = 45.29/x
  3. Step 3: Cross multiply
    58.25x = 80.43 × 45.29
  4. Step 4: Simplify right side
    58.25x = 3,642.67
  5. Step 5: Solve for x
    x = 3,642.67/58.25
  6. Step 6: Final answer
    x = 62.54

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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.