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Finding the Fourth Proportional to 66,309.37, 99,465.09 and 36,914.05

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Solution

The fourth proportional to 66,309.37, 99,465.09 and 36,914.05 is: 55,371.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,309.37 : 99,465.09 = 36,914.05 : x
  2. Step 2: Convert to fraction form
    66,309.37/99,465.09 = 36,914.05/x
  3. Step 3: Cross multiply
    66,309.37x = 99,465.09 × 36,914.05
  4. Step 4: Simplify right side
    66,309.37x = 3,671,658,939.57
  5. Step 5: Solve for x
    x = 3,671,658,939.57/66,309.37
  6. Step 6: Final answer
    x = 55,371.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.