Home / 75,811.90-104,619.12-41,823.64

Finding the Fourth Proportional to 75,811.90, 104,619.12 and 41,823.64

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Solution

The fourth proportional to 75,811.90, 104,619.12 and 41,823.64 is: 57,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,811.90 : 104,619.12 = 41,823.64 : x
  2. Step 2: Convert to fraction form
    75,811.90/104,619.12 = 41,823.64/x
  3. Step 3: Cross multiply
    75,811.90x = 104,619.12 × 41,823.64
  4. Step 4: Simplify right side
    75,811.90x = 4,375,552,412.00
  5. Step 5: Solve for x
    x = 4,375,552,412.00/75,811.90
  6. Step 6: Final answer
    x = 57,715.90

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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.