Home / 74,266.12-111,376.86-21,661.48

Finding the Fourth Proportional to 74,266.12, 111,376.86 and 21,661.48

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Solution

The fourth proportional to 74,266.12, 111,376.86 and 21,661.48 is: 32,485.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,266.12 : 111,376.86 = 21,661.48 : x
  2. Step 2: Convert to fraction form
    74,266.12/111,376.86 = 21,661.48/x
  3. Step 3: Cross multiply
    74,266.12x = 111,376.86 × 21,661.48
  4. Step 4: Simplify right side
    74,266.12x = 2,412,587,625.35
  5. Step 5: Solve for x
    x = 2,412,587,625.35/74,266.12
  6. Step 6: Final answer
    x = 32,485.71

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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.