Home / 74,101.37-102,260.03-40,109.90

Finding the Fourth Proportional to 74,101.37, 102,260.03 and 40,109.90

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Solution

The fourth proportional to 74,101.37, 102,260.03 and 40,109.90 is: 55,351.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,101.37 : 102,260.03 = 40,109.90 : x
  2. Step 2: Convert to fraction form
    74,101.37/102,260.03 = 40,109.90/x
  3. Step 3: Cross multiply
    74,101.37x = 102,260.03 × 40,109.90
  4. Step 4: Simplify right side
    74,101.37x = 4,101,638,865.45
  5. Step 5: Solve for x
    x = 4,101,638,865.45/74,101.37
  6. Step 6: Final answer
    x = 55,351.73

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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.