Home / 74,169.78-111,273.48-21,579.18

Finding the Fourth Proportional to 74,169.78, 111,273.48 and 21,579.18

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Solution

The fourth proportional to 74,169.78, 111,273.48 and 21,579.18 is: 32,374.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,169.78 : 111,273.48 = 21,579.18 : x
  2. Step 2: Convert to fraction form
    74,169.78/111,273.48 = 21,579.18/x
  3. Step 3: Cross multiply
    74,169.78x = 111,273.48 × 21,579.18
  4. Step 4: Simplify right side
    74,169.78x = 2,401,190,454.15
  5. Step 5: Solve for x
    x = 2,401,190,454.15/74,169.78
  6. Step 6: Final answer
    x = 32,374.24

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1.5x scale

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.