Home / 72,615.42-100,192.89-43,934.37

Finding the Fourth Proportional to 72,615.42, 100,192.89 and 43,934.37

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Solution

The fourth proportional to 72,615.42, 100,192.89 and 43,934.37 is: 60,619.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,615.42 : 100,192.89 = 43,934.37 : x
  2. Step 2: Convert to fraction form
    72,615.42/100,192.89 = 43,934.37/x
  3. Step 3: Cross multiply
    72,615.42x = 100,192.89 × 43,934.37
  4. Step 4: Simplify right side
    72,615.42x = 4,401,911,289.66
  5. Step 5: Solve for x
    x = 4,401,911,289.66/72,615.42
  6. Step 6: Final answer
    x = 60,619.51

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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.