Home / 65,042.21-89,760-36,747.29

Finding the Fourth Proportional to 65,042.21, 89,760 and 36,747.29

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Solution

The fourth proportional to 65,042.21, 89,760 and 36,747.29 is: 50,712.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,042.21 : 89,760 = 36,747.29 : x
  2. Step 2: Convert to fraction form
    65,042.21/89,760 = 36,747.29/x
  3. Step 3: Cross multiply
    65,042.21x = 89,760 × 36,747.29
  4. Step 4: Simplify right side
    65,042.21x = 3,298,436,301.60
  5. Step 5: Solve for x
    x = 3,298,436,301.60/65,042.21
  6. Step 6: Final answer
    x = 50,712.25

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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.