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Finding the Fourth Proportional to 60.75, 91.63 and 58.59

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Solution

The fourth proportional to 60.75, 91.63 and 58.59 is: 88.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.75 : 91.63 = 58.59 : x
  2. Step 2: Convert to fraction form
    60.75/91.63 = 58.59/x
  3. Step 3: Cross multiply
    60.75x = 91.63 × 58.59
  4. Step 4: Simplify right side
    60.75x = 5,368.67
  5. Step 5: Solve for x
    x = 5,368.67/60.75
  6. Step 6: Final answer
    x = 88.37

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.