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Finding the Fourth Proportional to 46.77, 70.16 and 25.11

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Solution

The fourth proportional to 46.77, 70.16 and 25.11 is: 37.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.77 : 70.16 = 25.11 : x
  2. Step 2: Convert to fraction form
    46.77/70.16 = 25.11/x
  3. Step 3: Cross multiply
    46.77x = 70.16 × 25.11
  4. Step 4: Simplify right side
    46.77x = 1,761.72
  5. Step 5: Solve for x
    x = 1,761.72/46.77
  6. Step 6: Final answer
    x = 37.67

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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.