Home / 65,742.39-98,638.21-34,132.72

Finding the Fourth Proportional to 65,742.39, 98,638.21 and 34,132.72

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Solution

The fourth proportional to 65,742.39, 98,638.21 and 34,132.72 is: 51,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,742.39 : 98,638.21 = 34,132.72 : x
  2. Step 2: Convert to fraction form
    65,742.39/98,638.21 = 34,132.72/x
  3. Step 3: Cross multiply
    65,742.39x = 98,638.21 × 34,132.72
  4. Step 4: Simplify right side
    65,742.39x = 3,366,790,403.23
  5. Step 5: Solve for x
    x = 3,366,790,403.23/65,742.39
  6. Step 6: Final answer
    x = 51,211.87

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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.