Home / 71,736.37-98,996.11-39,904.59

Finding the Fourth Proportional to 71,736.37, 98,996.11 and 39,904.59

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Solution

The fourth proportional to 71,736.37, 98,996.11 and 39,904.59 is: 55,068.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,736.37 : 98,996.11 = 39,904.59 : x
  2. Step 2: Convert to fraction form
    71,736.37/98,996.11 = 39,904.59/x
  3. Step 3: Cross multiply
    71,736.37x = 98,996.11 × 39,904.59
  4. Step 4: Simplify right side
    71,736.37x = 3,950,399,181.14
  5. Step 5: Solve for x
    x = 3,950,399,181.14/71,736.37
  6. Step 6: Final answer
    x = 55,068.29

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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.