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Finding the Fourth Proportional to 59.31, 88.68 and 51.77

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Solution

The fourth proportional to 59.31, 88.68 and 51.77 is: 77.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.31 : 88.68 = 51.77 : x
  2. Step 2: Convert to fraction form
    59.31/88.68 = 51.77/x
  3. Step 3: Cross multiply
    59.31x = 88.68 × 51.77
  4. Step 4: Simplify right side
    59.31x = 4,590.96
  5. Step 5: Solve for x
    x = 4,590.96/59.31
  6. Step 6: Final answer
    x = 77.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.