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Finding the Fourth Proportional to 40,606.98, 60,919.16 and 12,146.16

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Solution

The fourth proportional to 40,606.98, 60,919.16 and 12,146.16 is: 18,221.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,606.98 : 60,919.16 = 12,146.16 : x
  2. Step 2: Convert to fraction form
    40,606.98/60,919.16 = 12,146.16/x
  3. Step 3: Cross multiply
    40,606.98x = 60,919.16 × 12,146.16
  4. Step 4: Simplify right side
    40,606.98x = 739,934,077.69
  5. Step 5: Solve for x
    x = 739,934,077.69/40,606.98
  6. Step 6: Final answer
    x = 18,221.85

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1.5x scale

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.