Home / 74,749.40-112,121.66-30,363.02

Finding the Fourth Proportional to 74,749.40, 112,121.66 and 30,363.02

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Solution

The fourth proportional to 74,749.40, 112,121.66 and 30,363.02 is: 45,543.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,749.40 : 112,121.66 = 30,363.02 : x
  2. Step 2: Convert to fraction form
    74,749.40/112,121.66 = 30,363.02/x
  3. Step 3: Cross multiply
    74,749.40x = 112,121.66 × 30,363.02
  4. Step 4: Simplify right side
    74,749.40x = 3,404,352,205.01
  5. Step 5: Solve for x
    x = 3,404,352,205.01/74,749.40
  6. Step 6: Final answer
    x = 45,543.54

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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.