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Finding the Fourth Proportional to 66,152, 91,289.76 and 36,344

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Solution

The fourth proportional to 66,152, 91,289.76 and 36,344 is: 50,154.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,152 : 91,289.76 = 36,344 : x
  2. Step 2: Convert to fraction form
    66,152/91,289.76 = 36,344/x
  3. Step 3: Cross multiply
    66,152x = 91,289.76 × 36,344
  4. Step 4: Simplify right side
    66,152x = 3,317,835,037.44
  5. Step 5: Solve for x
    x = 3,317,835,037.44/66,152
  6. Step 6: Final answer
    x = 50,154.72

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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.