Home / 74,628.54-111,942.56-30,255.19

Finding the Fourth Proportional to 74,628.54, 111,942.56 and 30,255.19

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Solution

The fourth proportional to 74,628.54, 111,942.56 and 30,255.19 is: 45,382.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,628.54 : 111,942.56 = 30,255.19 : x
  2. Step 2: Convert to fraction form
    74,628.54/111,942.56 = 30,255.19/x
  3. Step 3: Cross multiply
    74,628.54x = 111,942.56 × 30,255.19
  4. Step 4: Simplify right side
    74,628.54x = 3,386,843,047.48
  5. Step 5: Solve for x
    x = 3,386,843,047.48/74,628.54
  6. Step 6: Final answer
    x = 45,382.68

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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.