Home / 66,286.78-91,477.69-36,074.05

Finding the Fourth Proportional to 66,286.78, 91,477.69 and 36,074.05

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Solution

The fourth proportional to 66,286.78, 91,477.69 and 36,074.05 is: 49,783.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,286.78 : 91,477.69 = 36,074.05 : x
  2. Step 2: Convert to fraction form
    66,286.78/91,477.69 = 36,074.05/x
  3. Step 3: Cross multiply
    66,286.78x = 91,477.69 × 36,074.05
  4. Step 4: Simplify right side
    66,286.78x = 3,299,970,762.94
  5. Step 5: Solve for x
    x = 3,299,970,762.94/66,286.78
  6. Step 6: Final answer
    x = 49,783.24

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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.