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Finding the Fourth Proportional to 66,370.35, 91,591.80 and 36,155.91

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Solution

The fourth proportional to 66,370.35, 91,591.80 and 36,155.91 is: 49,895.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,370.35 : 91,591.80 = 36,155.91 : x
  2. Step 2: Convert to fraction form
    66,370.35/91,591.80 = 36,155.91/x
  3. Step 3: Cross multiply
    66,370.35x = 91,591.80 × 36,155.91
  4. Step 4: Simplify right side
    66,370.35x = 3,311,584,877.54
  5. Step 5: Solve for x
    x = 3,311,584,877.54/66,370.35
  6. Step 6: Final answer
    x = 49,895.55

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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.