Home / 74,081.78-111,129.40-24,149.06

Finding the Fourth Proportional to 74,081.78, 111,129.40 and 24,149.06

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Solution

The fourth proportional to 74,081.78, 111,129.40 and 24,149.06 is: 36,225.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,081.78 : 111,129.40 = 24,149.06 : x
  2. Step 2: Convert to fraction form
    74,081.78/111,129.40 = 24,149.06/x
  3. Step 3: Cross multiply
    74,081.78x = 111,129.40 × 24,149.06
  4. Step 4: Simplify right side
    74,081.78x = 2,683,670,548.36
  5. Step 5: Solve for x
    x = 2,683,670,548.36/74,081.78
  6. Step 6: Final answer
    x = 36,225.78

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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.