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Finding the Fourth Proportional to 58.93, 87.38 and 58.46

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Solution

The fourth proportional to 58.93, 87.38 and 58.46 is: 86.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.93 : 87.38 = 58.46 : x
  2. Step 2: Convert to fraction form
    58.93/87.38 = 58.46/x
  3. Step 3: Cross multiply
    58.93x = 87.38 × 58.46
  4. Step 4: Simplify right side
    58.93x = 5,107.72
  5. Step 5: Solve for x
    x = 5,107.72/58.93
  6. Step 6: Final answer
    x = 86.68

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.