Home / 74,720.76-103,115.34-41,187.96

Finding the Fourth Proportional to 74,720.76, 103,115.34 and 41,187.96

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Solution

The fourth proportional to 74,720.76, 103,115.34 and 41,187.96 is: 56,839.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,720.76 : 103,115.34 = 41,187.96 : x
  2. Step 2: Convert to fraction form
    74,720.76/103,115.34 = 41,187.96/x
  3. Step 3: Cross multiply
    74,720.76x = 103,115.34 × 41,187.96
  4. Step 4: Simplify right side
    74,720.76x = 4,247,110,499.31
  5. Step 5: Solve for x
    x = 4,247,110,499.31/74,720.76
  6. Step 6: Final answer
    x = 56,839.77

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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.