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Finding the Fourth Proportional to 66,367.78, 91,586.26 and 36,152.76

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Solution

The fourth proportional to 66,367.78, 91,586.26 and 36,152.76 is: 49,890.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,367.78 : 91,586.26 = 36,152.76 : x
  2. Step 2: Convert to fraction form
    66,367.78/91,586.26 = 36,152.76/x
  3. Step 3: Cross multiply
    66,367.78x = 91,586.26 × 36,152.76
  4. Step 4: Simplify right side
    66,367.78x = 3,311,096,077.08
  5. Step 5: Solve for x
    x = 3,311,096,077.08/66,367.78
  6. Step 6: Final answer
    x = 49,890.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.