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Finding the Fourth Proportional to 59.46, 88.76 and 57.56

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Solution

The fourth proportional to 59.46, 88.76 and 57.56 is: 85.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.46 : 88.76 = 57.56 : x
  2. Step 2: Convert to fraction form
    59.46/88.76 = 57.56/x
  3. Step 3: Cross multiply
    59.46x = 88.76 × 57.56
  4. Step 4: Simplify right side
    59.46x = 5,109.03
  5. Step 5: Solve for x
    x = 5,109.03/59.46
  6. Step 6: Final answer
    x = 85.92

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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.