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Finding the Fourth Proportional to 66,215.00, 91,378.49 and 36,002.35

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Solution

The fourth proportional to 66,215.00, 91,378.49 and 36,002.35 is: 49,684.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,215.00 : 91,378.49 = 36,002.35 : x
  2. Step 2: Convert to fraction form
    66,215.00/91,378.49 = 36,002.35/x
  3. Step 3: Cross multiply
    66,215.00x = 91,378.49 × 36,002.35
  4. Step 4: Simplify right side
    66,215.00x = 3,289,839,742.55
  5. Step 5: Solve for x
    x = 3,289,839,742.55/66,215.00
  6. Step 6: Final answer
    x = 49,684.21

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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.