Home / 75,749.67-104,578.04-50,290.40

Finding the Fourth Proportional to 75,749.67, 104,578.04 and 50,290.40

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Solution

The fourth proportional to 75,749.67, 104,578.04 and 50,290.40 is: 69,429.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,749.67 : 104,578.04 = 50,290.40 : x
  2. Step 2: Convert to fraction form
    75,749.67/104,578.04 = 50,290.40/x
  3. Step 3: Cross multiply
    75,749.67x = 104,578.04 × 50,290.40
  4. Step 4: Simplify right side
    75,749.67x = 5,259,270,688.47
  5. Step 5: Solve for x
    x = 5,259,270,688.47/75,749.67
  6. Step 6: Final answer
    x = 69,429.62

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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.