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Finding the Fourth Proportional to 66,395.91, 91,624.05 and 36,180.63

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Solution

The fourth proportional to 66,395.91, 91,624.05 and 36,180.63 is: 49,928.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,395.91 : 91,624.05 = 36,180.63 : x
  2. Step 2: Convert to fraction form
    66,395.91/91,624.05 = 36,180.63/x
  3. Step 3: Cross multiply
    66,395.91x = 91,624.05 × 36,180.63
  4. Step 4: Simplify right side
    66,395.91x = 3,315,015,852.15
  5. Step 5: Solve for x
    x = 3,315,015,852.15/66,395.91
  6. Step 6: Final answer
    x = 49,928.01

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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.