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Finding the Fourth Proportional to 74,745.80, 103,150.01 and 40,754.01

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Solution

The fourth proportional to 74,745.80, 103,150.01 and 40,754.01 is: 56,240.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,745.80 : 103,150.01 = 40,754.01 : x
  2. Step 2: Convert to fraction form
    74,745.80/103,150.01 = 40,754.01/x
  3. Step 3: Cross multiply
    74,745.80x = 103,150.01 × 40,754.01
  4. Step 4: Simplify right side
    74,745.80x = 4,203,776,640.93
  5. Step 5: Solve for x
    x = 4,203,776,640.93/74,745.80
  6. Step 6: Final answer
    x = 56,240.97

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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.