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Finding the Fourth Proportional to 66,351.61, 91,562.36 and 36,136.99

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Solution

The fourth proportional to 66,351.61, 91,562.36 and 36,136.99 is: 49,867.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,351.61 : 91,562.36 = 36,136.99 : x
  2. Step 2: Convert to fraction form
    66,351.61/91,562.36 = 36,136.99/x
  3. Step 3: Cross multiply
    66,351.61x = 91,562.36 × 36,136.99
  4. Step 4: Simplify right side
    66,351.61x = 3,308,787,678.11
  5. Step 5: Solve for x
    x = 3,308,787,678.11/66,351.61
  6. Step 6: Final answer
    x = 49,867.48

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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.