Home / 71,723.16-98,975.97-39,893.22

Finding the Fourth Proportional to 71,723.16, 98,975.97 and 39,893.22

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Solution

The fourth proportional to 71,723.16, 98,975.97 and 39,893.22 is: 55,051.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,723.16 : 98,975.97 = 39,893.22 : x
  2. Step 2: Convert to fraction form
    71,723.16/98,975.97 = 39,893.22/x
  3. Step 3: Cross multiply
    71,723.16x = 98,975.97 × 39,893.22
  4. Step 4: Simplify right side
    71,723.16x = 3,948,470,145.92
  5. Step 5: Solve for x
    x = 3,948,470,145.92/71,723.16
  6. Step 6: Final answer
    x = 55,051.54

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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.