Home / 96,910.12-145,421.34-40,745.80

Finding the Fourth Proportional to 96,910.12, 145,421.34 and 40,745.80

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Solution

The fourth proportional to 96,910.12, 145,421.34 and 40,745.80 is: 61,142.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,910.12 : 145,421.34 = 40,745.80 : x
  2. Step 2: Convert to fraction form
    96,910.12/145,421.34 = 40,745.80/x
  3. Step 3: Cross multiply
    96,910.12x = 145,421.34 × 40,745.80
  4. Step 4: Simplify right side
    96,910.12x = 5,925,308,835.37
  5. Step 5: Solve for x
    x = 5,925,308,835.37/96,910.12
  6. Step 6: Final answer
    x = 61,142.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.