Home / 66,213.09-91,375.86-36,000.45

Finding the Fourth Proportional to 66,213.09, 91,375.86 and 36,000.45

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Solution

The fourth proportional to 66,213.09, 91,375.86 and 36,000.45 is: 49,681.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,213.09 : 91,375.86 = 36,000.45 : x
  2. Step 2: Convert to fraction form
    66,213.09/91,375.86 = 36,000.45/x
  3. Step 3: Cross multiply
    66,213.09x = 91,375.86 × 36,000.45
  4. Step 4: Simplify right side
    66,213.09x = 3,289,572,214.14
  5. Step 5: Solve for x
    x = 3,289,572,214.14/66,213.09
  6. Step 6: Final answer
    x = 49,681.60

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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.