Home / 71,043.47-98,039.49-39,212.36

Finding the Fourth Proportional to 71,043.47, 98,039.49 and 39,212.36

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Solution

The fourth proportional to 71,043.47, 98,039.49 and 39,212.36 is: 54,112.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,043.47 : 98,039.49 = 39,212.36 : x
  2. Step 2: Convert to fraction form
    71,043.47/98,039.49 = 39,212.36/x
  3. Step 3: Cross multiply
    71,043.47x = 98,039.49 × 39,212.36
  4. Step 4: Simplify right side
    71,043.47x = 3,844,359,285.90
  5. Step 5: Solve for x
    x = 3,844,359,285.90/71,043.47
  6. Step 6: Final answer
    x = 54,112.78

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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.