Home / 74,458.37-111,687.33-30,084.60

Finding the Fourth Proportional to 74,458.37, 111,687.33 and 30,084.60

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Solution

The fourth proportional to 74,458.37, 111,687.33 and 30,084.60 is: 45,126.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,458.37 : 111,687.33 = 30,084.60 : x
  2. Step 2: Convert to fraction form
    74,458.37/111,687.33 = 30,084.60/x
  3. Step 3: Cross multiply
    74,458.37x = 111,687.33 × 30,084.60
  4. Step 4: Simplify right side
    74,458.37x = 3,360,068,648.12
  5. Step 5: Solve for x
    x = 3,360,068,648.12/74,458.37
  6. Step 6: Final answer
    x = 45,126.81

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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.