Home / 77,530.07-106,991.49-43,538.58

Finding the Fourth Proportional to 77,530.07, 106,991.49 and 43,538.58

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Solution

The fourth proportional to 77,530.07, 106,991.49 and 43,538.58 is: 60,083.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,530.07 : 106,991.49 = 43,538.58 : x
  2. Step 2: Convert to fraction form
    77,530.07/106,991.49 = 43,538.58/x
  3. Step 3: Cross multiply
    77,530.07x = 106,991.49 × 43,538.58
  4. Step 4: Simplify right side
    77,530.07x = 4,658,257,546.68
  5. Step 5: Solve for x
    x = 4,658,257,546.68/77,530.07
  6. Step 6: Final answer
    x = 60,083.24

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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.