Home / 66,221.05-91,382.53-36,006.39

Finding the Fourth Proportional to 66,221.05, 91,382.53 and 36,006.39

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Solution

The fourth proportional to 66,221.05, 91,382.53 and 36,006.39 is: 49,687.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,221.05 : 91,382.53 = 36,006.39 : x
  2. Step 2: Convert to fraction form
    66,221.05/91,382.53 = 36,006.39/x
  3. Step 3: Cross multiply
    66,221.05x = 91,382.53 × 36,006.39
  4. Step 4: Simplify right side
    66,221.05x = 3,290,355,014.37
  5. Step 5: Solve for x
    x = 3,290,355,014.37/66,221.05
  6. Step 6: Final answer
    x = 49,687.45

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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.