Home / 71,186.37-98,243.06-39,361.47

Finding the Fourth Proportional to 71,186.37, 98,243.06 and 39,361.47

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Solution

The fourth proportional to 71,186.37, 98,243.06 and 39,361.47 is: 54,322.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,186.37 : 98,243.06 = 39,361.47 : x
  2. Step 2: Convert to fraction form
    71,186.37/98,243.06 = 39,361.47/x
  3. Step 3: Cross multiply
    71,186.37x = 98,243.06 × 39,361.47
  4. Step 4: Simplify right side
    71,186.37x = 3,866,991,062.09
  5. Step 5: Solve for x
    x = 3,866,991,062.09/71,186.37
  6. Step 6: Final answer
    x = 54,322.07

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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.