Home / 74,749.92-112,122.40-30,363.52

Finding the Fourth Proportional to 74,749.92, 112,122.40 and 30,363.52

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Solution

The fourth proportional to 74,749.92, 112,122.40 and 30,363.52 is: 45,544.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,749.92 : 112,122.40 = 30,363.52 : x
  2. Step 2: Convert to fraction form
    74,749.92/112,122.40 = 30,363.52/x
  3. Step 3: Cross multiply
    74,749.92x = 112,122.40 × 30,363.52
  4. Step 4: Simplify right side
    74,749.92x = 3,404,430,734.85
  5. Step 5: Solve for x
    x = 3,404,430,734.85/74,749.92
  6. Step 6: Final answer
    x = 45,544.27

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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.