Home / 72,837.45-100,514.07-40,571.96

Finding the Fourth Proportional to 72,837.45, 100,514.07 and 40,571.96

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Solution

The fourth proportional to 72,837.45, 100,514.07 and 40,571.96 is: 55,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,837.45 : 100,514.07 = 40,571.96 : x
  2. Step 2: Convert to fraction form
    72,837.45/100,514.07 = 40,571.96/x
  3. Step 3: Cross multiply
    72,837.45x = 100,514.07 × 40,571.96
  4. Step 4: Simplify right side
    72,837.45x = 4,078,052,324.91
  5. Step 5: Solve for x
    x = 4,078,052,324.91/72,837.45
  6. Step 6: Final answer
    x = 55,988.40

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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.