Home / 65,688.72-98,447.41-30,137.21

Finding the Fourth Proportional to 65,688.72, 98,447.41 and 30,137.21

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Solution

The fourth proportional to 65,688.72, 98,447.41 and 30,137.21 is: 45,166.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,688.72 : 98,447.41 = 30,137.21 : x
  2. Step 2: Convert to fraction form
    65,688.72/98,447.41 = 30,137.21/x
  3. Step 3: Cross multiply
    65,688.72x = 98,447.41 × 30,137.21
  4. Step 4: Simplify right side
    65,688.72x = 2,966,930,183.74
  5. Step 5: Solve for x
    x = 2,966,930,183.74/65,688.72
  6. Step 6: Final answer
    x = 45,166.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.