Home / 74,089.20-111,036.60-29,679.60

Finding the Fourth Proportional to 74,089.20, 111,036.60 and 29,679.60

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Solution

The fourth proportional to 74,089.20, 111,036.60 and 29,679.60 is: 44,480.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,089.20 : 111,036.60 = 29,679.60 : x
  2. Step 2: Convert to fraction form
    74,089.20/111,036.60 = 29,679.60/x
  3. Step 3: Cross multiply
    74,089.20x = 111,036.60 × 29,679.60
  4. Step 4: Simplify right side
    74,089.20x = 3,295,521,873.36
  5. Step 5: Solve for x
    x = 3,295,521,873.36/74,089.20
  6. Step 6: Final answer
    x = 44,480.46

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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.