Home / 74,193.88-102,387.38-40,203.28

Finding the Fourth Proportional to 74,193.88, 102,387.38 and 40,203.28

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Solution

The fourth proportional to 74,193.88, 102,387.38 and 40,203.28 is: 55,480.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,193.88 : 102,387.38 = 40,203.28 : x
  2. Step 2: Convert to fraction form
    74,193.88/102,387.38 = 40,203.28/x
  3. Step 3: Cross multiply
    74,193.88x = 102,387.38 × 40,203.28
  4. Step 4: Simplify right side
    74,193.88x = 4,116,308,506.61
  5. Step 5: Solve for x
    x = 4,116,308,506.61/74,193.88
  6. Step 6: Final answer
    x = 55,480.43

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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.