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Finding the Fourth Proportional to 66,477, 100,174.11 and 60,236.76

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Solution

The fourth proportional to 66,477, 100,174.11 and 60,236.76 is: 90,770.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,477 : 100,174.11 = 60,236.76 : x
  2. Step 2: Convert to fraction form
    66,477/100,174.11 = 60,236.76/x
  3. Step 3: Cross multiply
    66,477x = 100,174.11 × 60,236.76
  4. Step 4: Simplify right side
    66,477x = 6,034,163,822.28
  5. Step 5: Solve for x
    x = 6,034,163,822.28/66,477
  6. Step 6: Final answer
    x = 90,770.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.