Home / 74,019.35-102,149.34-42,183.11

Finding the Fourth Proportional to 74,019.35, 102,149.34 and 42,183.11

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Solution

The fourth proportional to 74,019.35, 102,149.34 and 42,183.11 is: 58,214.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,019.35 : 102,149.34 = 42,183.11 : x
  2. Step 2: Convert to fraction form
    74,019.35/102,149.34 = 42,183.11/x
  3. Step 3: Cross multiply
    74,019.35x = 102,149.34 × 42,183.11
  4. Step 4: Simplify right side
    74,019.35x = 4,308,976,845.65
  5. Step 5: Solve for x
    x = 4,308,976,845.65/74,019.35
  6. Step 6: Final answer
    x = 58,214.19

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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.