Home / 71,816.10-99,103.53-39,984.33

Finding the Fourth Proportional to 71,816.10, 99,103.53 and 39,984.33

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Solution

The fourth proportional to 71,816.10, 99,103.53 and 39,984.33 is: 55,176.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,816.10 : 99,103.53 = 39,984.33 : x
  2. Step 2: Convert to fraction form
    71,816.10/99,103.53 = 39,984.33/x
  3. Step 3: Cross multiply
    71,816.10x = 99,103.53 × 39,984.33
  4. Step 4: Simplify right side
    71,816.10x = 3,962,588,247.68
  5. Step 5: Solve for x
    x = 3,962,588,247.68/71,816.10
  6. Step 6: Final answer
    x = 55,176.88

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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.