Home / 66,469.13-91,736.20-42,272.37

Finding the Fourth Proportional to 66,469.13, 91,736.20 and 42,272.37

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Solution

The fourth proportional to 66,469.13, 91,736.20 and 42,272.37 is: 58,341.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,469.13 : 91,736.20 = 42,272.37 : x
  2. Step 2: Convert to fraction form
    66,469.13/91,736.20 = 42,272.37/x
  3. Step 3: Cross multiply
    66,469.13x = 91,736.20 × 42,272.37
  4. Step 4: Simplify right side
    66,469.13x = 3,877,905,918.75
  5. Step 5: Solve for x
    x = 3,877,905,918.75/66,469.13
  6. Step 6: Final answer
    x = 58,341.46

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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.