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Finding the Fourth Proportional to 66,951.66, 100,423.36 and 27,507.76

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Solution

The fourth proportional to 66,951.66, 100,423.36 and 27,507.76 is: 41,259.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,951.66 : 100,423.36 = 27,507.76 : x
  2. Step 2: Convert to fraction form
    66,951.66/100,423.36 = 27,507.76/x
  3. Step 3: Cross multiply
    66,951.66x = 100,423.36 × 27,507.76
  4. Step 4: Simplify right side
    66,951.66x = 2,762,421,685.27
  5. Step 5: Solve for x
    x = 2,762,421,685.27/66,951.66
  6. Step 6: Final answer
    x = 41,259.94

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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.