Home / 74,203.07-102,395.88-43,991.28

Finding the Fourth Proportional to 74,203.07, 102,395.88 and 43,991.28

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Solution

The fourth proportional to 74,203.07, 102,395.88 and 43,991.28 is: 60,705.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,203.07 : 102,395.88 = 43,991.28 : x
  2. Step 2: Convert to fraction form
    74,203.07/102,395.88 = 43,991.28/x
  3. Step 3: Cross multiply
    74,203.07x = 102,395.88 × 43,991.28
  4. Step 4: Simplify right side
    74,203.07x = 4,504,525,827.93
  5. Step 5: Solve for x
    x = 4,504,525,827.93/74,203.07
  6. Step 6: Final answer
    x = 60,705.39

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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.