Home / 74,540.48-102,840.72-50,625.68

Finding the Fourth Proportional to 74,540.48, 102,840.72 and 50,625.68

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Solution

The fourth proportional to 74,540.48, 102,840.72 and 50,625.68 is: 69,846.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,540.48 : 102,840.72 = 50,625.68 : x
  2. Step 2: Convert to fraction form
    74,540.48/102,840.72 = 50,625.68/x
  3. Step 3: Cross multiply
    74,540.48x = 102,840.72 × 50,625.68
  4. Step 4: Simplify right side
    74,540.48x = 5,206,381,381.69
  5. Step 5: Solve for x
    x = 5,206,381,381.69/74,540.48
  6. Step 6: Final answer
    x = 69,846.36

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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.