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Finding the Fourth Proportional to 66,285.46, 91,472.42 and 36,070.86

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Solution

The fourth proportional to 66,285.46, 91,472.42 and 36,070.86 is: 49,776.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,285.46 : 91,472.42 = 36,070.86 : x
  2. Step 2: Convert to fraction form
    66,285.46/91,472.42 = 36,070.86/x
  3. Step 3: Cross multiply
    66,285.46x = 91,472.42 × 36,070.86
  4. Step 4: Simplify right side
    66,285.46x = 3,299,488,855.68
  5. Step 5: Solve for x
    x = 3,299,488,855.68/66,285.46
  6. Step 6: Final answer
    x = 49,776.96

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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.