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Finding the Fourth Proportional to 66,332.79, 91,540.89 and 36,119.76

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Solution

The fourth proportional to 66,332.79, 91,540.89 and 36,119.76 is: 49,846.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,332.79 : 91,540.89 = 36,119.76 : x
  2. Step 2: Convert to fraction form
    66,332.79/91,540.89 = 36,119.76/x
  3. Step 3: Cross multiply
    66,332.79x = 91,540.89 × 36,119.76
  4. Step 4: Simplify right side
    66,332.79x = 3,306,434,976.99
  5. Step 5: Solve for x
    x = 3,306,434,976.99/66,332.79
  6. Step 6: Final answer
    x = 49,846.16

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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.