Home / 75,509.58-104,205.90-41,520.66

Finding the Fourth Proportional to 75,509.58, 104,205.90 and 41,520.66

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Solution

The fourth proportional to 75,509.58, 104,205.90 and 41,520.66 is: 57,299.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,509.58 : 104,205.90 = 41,520.66 : x
  2. Step 2: Convert to fraction form
    75,509.58/104,205.90 = 41,520.66/x
  3. Step 3: Cross multiply
    75,509.58x = 104,205.90 × 41,520.66
  4. Step 4: Simplify right side
    75,509.58x = 4,326,697,015.26
  5. Step 5: Solve for x
    x = 4,326,697,015.26/75,509.58
  6. Step 6: Final answer
    x = 57,299.97

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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.