Home / 57,091.49-78,783.84-31,595.47

Finding the Fourth Proportional to 57,091.49, 78,783.84 and 31,595.47

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Solution

The fourth proportional to 57,091.49, 78,783.84 and 31,595.47 is: 43,600.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,091.49 : 78,783.84 = 31,595.47 : x
  2. Step 2: Convert to fraction form
    57,091.49/78,783.84 = 31,595.47/x
  3. Step 3: Cross multiply
    57,091.49x = 78,783.84 × 31,595.47
  4. Step 4: Simplify right side
    57,091.49x = 2,489,212,453.20
  5. Step 5: Solve for x
    x = 2,489,212,453.20/57,091.49
  6. Step 6: Final answer
    x = 43,600.41

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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.