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Finding the Fourth Proportional to 58.97, 87.80 and 58.10

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Solution

The fourth proportional to 58.97, 87.80 and 58.10 is: 86.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.97 : 87.80 = 58.10 : x
  2. Step 2: Convert to fraction form
    58.97/87.80 = 58.10/x
  3. Step 3: Cross multiply
    58.97x = 87.80 × 58.10
  4. Step 4: Simplify right side
    58.97x = 5,101.18
  5. Step 5: Solve for x
    x = 5,101.18/58.97
  6. Step 6: Final answer
    x = 86.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.