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Finding the Fourth Proportional to 59.17, 88.71 and 56.28

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Solution

The fourth proportional to 59.17, 88.71 and 56.28 is: 84.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.17 : 88.71 = 56.28 : x
  2. Step 2: Convert to fraction form
    59.17/88.71 = 56.28/x
  3. Step 3: Cross multiply
    59.17x = 88.71 × 56.28
  4. Step 4: Simplify right side
    59.17x = 4,992.60
  5. Step 5: Solve for x
    x = 4,992.60/59.17
  6. Step 6: Final answer
    x = 84.38

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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.