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Finding the Fourth Proportional to 72,602.52, 100,212.36 and 43,922.28

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Solution

The fourth proportional to 72,602.52, 100,212.36 and 43,922.28 is: 60,625.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,602.52 : 100,212.36 = 43,922.28 : x
  2. Step 2: Convert to fraction form
    72,602.52/100,212.36 = 43,922.28/x
  3. Step 3: Cross multiply
    72,602.52x = 100,212.36 × 43,922.28
  4. Step 4: Simplify right side
    72,602.52x = 4,401,555,335.38
  5. Step 5: Solve for x
    x = 4,401,555,335.38/72,602.52
  6. Step 6: Final answer
    x = 60,625.38

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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.