Home / 74,255.40-111,512.70-71,922.60

Finding the Fourth Proportional to 74,255.40, 111,512.70 and 71,922.60

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Solution

The fourth proportional to 74,255.40, 111,512.70 and 71,922.60 is: 108,009.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,255.40 : 111,512.70 = 71,922.60 : x
  2. Step 2: Convert to fraction form
    74,255.40/111,512.70 = 71,922.60/x
  3. Step 3: Cross multiply
    74,255.40x = 111,512.70 × 71,922.60
  4. Step 4: Simplify right side
    74,255.40x = 8,020,283,317.02
  5. Step 5: Solve for x
    x = 8,020,283,317.02/74,255.40
  6. Step 6: Final answer
    x = 108,009.43

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1.5x scale

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.