Home / 71,212.08-98,270.24-39,380.88

Finding the Fourth Proportional to 71,212.08, 98,270.24 and 39,380.88

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Solution

The fourth proportional to 71,212.08, 98,270.24 and 39,380.88 is: 54,344.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,212.08 : 98,270.24 = 39,380.88 : x
  2. Step 2: Convert to fraction form
    71,212.08/98,270.24 = 39,380.88/x
  3. Step 3: Cross multiply
    71,212.08x = 98,270.24 × 39,380.88
  4. Step 4: Simplify right side
    71,212.08x = 3,869,968,529.01
  5. Step 5: Solve for x
    x = 3,869,968,529.01/71,212.08
  6. Step 6: Final answer
    x = 54,344.27

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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.