Home / 72,847.22-100,515.89-40,581.08

Finding the Fourth Proportional to 72,847.22, 100,515.89 and 40,581.08

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Solution

The fourth proportional to 72,847.22, 100,515.89 and 40,581.08 is: 55,994.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,847.22 : 100,515.89 = 40,581.08 : x
  2. Step 2: Convert to fraction form
    72,847.22/100,515.89 = 40,581.08/x
  3. Step 3: Cross multiply
    72,847.22x = 100,515.89 × 40,581.08
  4. Step 4: Simplify right side
    72,847.22x = 4,079,042,838.20
  5. Step 5: Solve for x
    x = 4,079,042,838.20/72,847.22
  6. Step 6: Final answer
    x = 55,994.49

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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.