Home / 72,828.08-100,512.32-41,003.20

Finding the Fourth Proportional to 72,828.08, 100,512.32 and 41,003.20

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Solution

The fourth proportional to 72,828.08, 100,512.32 and 41,003.20 is: 56,589.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,828.08 : 100,512.32 = 41,003.20 : x
  2. Step 2: Convert to fraction form
    72,828.08/100,512.32 = 41,003.20/x
  3. Step 3: Cross multiply
    72,828.08x = 100,512.32 × 41,003.20
  4. Step 4: Simplify right side
    72,828.08x = 4,121,326,759.42
  5. Step 5: Solve for x
    x = 4,121,326,759.42/72,828.08
  6. Step 6: Final answer
    x = 56,589.80

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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.