Home / 74,387.80-102,686.58-50,221.49

Finding the Fourth Proportional to 74,387.80, 102,686.58 and 50,221.49

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Solution

The fourth proportional to 74,387.80, 102,686.58 and 50,221.49 is: 69,326.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,387.80 : 102,686.58 = 50,221.49 : x
  2. Step 2: Convert to fraction form
    74,387.80/102,686.58 = 50,221.49/x
  3. Step 3: Cross multiply
    74,387.80x = 102,686.58 × 50,221.49
  4. Step 4: Simplify right side
    74,387.80x = 5,157,073,114.78
  5. Step 5: Solve for x
    x = 5,157,073,114.78/74,387.80
  6. Step 6: Final answer
    x = 69,326.87

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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.