Home / 72,604.07-100,194.82-40,341.57

Finding the Fourth Proportional to 72,604.07, 100,194.82 and 40,341.57

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Solution

The fourth proportional to 72,604.07, 100,194.82 and 40,341.57 is: 55,672.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,604.07 : 100,194.82 = 40,341.57 : x
  2. Step 2: Convert to fraction form
    72,604.07/100,194.82 = 40,341.57/x
  3. Step 3: Cross multiply
    72,604.07x = 100,194.82 × 40,341.57
  4. Step 4: Simplify right side
    72,604.07x = 4,042,016,376.80
  5. Step 5: Solve for x
    x = 4,042,016,376.80/72,604.07
  6. Step 6: Final answer
    x = 55,672.03

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1.5x scale

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.