Home / 75,421.24-104,078.46-41,889.40

Finding the Fourth Proportional to 75,421.24, 104,078.46 and 41,889.40

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Solution

The fourth proportional to 75,421.24, 104,078.46 and 41,889.40 is: 57,805.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,421.24 : 104,078.46 = 41,889.40 : x
  2. Step 2: Convert to fraction form
    75,421.24/104,078.46 = 41,889.40/x
  3. Step 3: Cross multiply
    75,421.24x = 104,078.46 × 41,889.40
  4. Step 4: Simplify right side
    75,421.24x = 4,359,784,242.32
  5. Step 5: Solve for x
    x = 4,359,784,242.32/75,421.24
  6. Step 6: Final answer
    x = 57,805.79

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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.