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Finding the Fourth Proportional to 59.07, 88.85 and 47.07

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Solution

The fourth proportional to 59.07, 88.85 and 47.07 is: 70.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.07 : 88.85 = 47.07 : x
  2. Step 2: Convert to fraction form
    59.07/88.85 = 47.07/x
  3. Step 3: Cross multiply
    59.07x = 88.85 × 47.07
  4. Step 4: Simplify right side
    59.07x = 4,181.93
  5. Step 5: Solve for x
    x = 4,181.93/59.07
  6. Step 6: Final answer
    x = 70.80

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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.