Home / 72,194.74-99,626.70-40,366.60

Finding the Fourth Proportional to 72,194.74, 99,626.70 and 40,366.60

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Solution

The fourth proportional to 72,194.74, 99,626.70 and 40,366.60 is: 55,704.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,194.74 : 99,626.70 = 40,366.60 : x
  2. Step 2: Convert to fraction form
    72,194.74/99,626.70 = 40,366.60/x
  3. Step 3: Cross multiply
    72,194.74x = 99,626.70 × 40,366.60
  4. Step 4: Simplify right side
    72,194.74x = 4,021,591,148.22
  5. Step 5: Solve for x
    x = 4,021,591,148.22/72,194.74
  6. Step 6: Final answer
    x = 55,704.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.