Home / 74,582.96-111,874.68-51,138.32

Finding the Fourth Proportional to 74,582.96, 111,874.68 and 51,138.32

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Solution

The fourth proportional to 74,582.96, 111,874.68 and 51,138.32 is: 76,707.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,582.96 : 111,874.68 = 51,138.32 : x
  2. Step 2: Convert to fraction form
    74,582.96/111,874.68 = 51,138.32/x
  3. Step 3: Cross multiply
    74,582.96x = 111,874.68 × 51,138.32
  4. Step 4: Simplify right side
    74,582.96x = 5,721,083,185.74
  5. Step 5: Solve for x
    x = 5,721,083,185.74/74,582.96
  6. Step 6: Final answer
    x = 76,707.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.