Home / 66,072.78-91,180.49-35,858.10

Finding the Fourth Proportional to 66,072.78, 91,180.49 and 35,858.10

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Solution

The fourth proportional to 66,072.78, 91,180.49 and 35,858.10 is: 49,484.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,072.78 : 91,180.49 = 35,858.10 : x
  2. Step 2: Convert to fraction form
    66,072.78/91,180.49 = 35,858.10/x
  3. Step 3: Cross multiply
    66,072.78x = 91,180.49 × 35,858.10
  4. Step 4: Simplify right side
    66,072.78x = 3,269,559,128.47
  5. Step 5: Solve for x
    x = 3,269,559,128.47/66,072.78
  6. Step 6: Final answer
    x = 49,484.21

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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.