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Finding the Fourth Proportional to 66,589.46, 91,889.46 and 36,368.76

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Solution

The fourth proportional to 66,589.46, 91,889.46 and 36,368.76 is: 50,186.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,589.46 : 91,889.46 = 36,368.76 : x
  2. Step 2: Convert to fraction form
    66,589.46/91,889.46 = 36,368.76/x
  3. Step 3: Cross multiply
    66,589.46x = 91,889.46 × 36,368.76
  4. Step 4: Simplify right side
    66,589.46x = 3,341,905,717.27
  5. Step 5: Solve for x
    x = 3,341,905,717.27/66,589.46
  6. Step 6: Final answer
    x = 50,186.71

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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.