Home / 65,128.25-97,539.29-31,743.70

Finding the Fourth Proportional to 65,128.25, 97,539.29 and 31,743.70

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Solution

The fourth proportional to 65,128.25, 97,539.29 and 31,743.70 is: 47,540.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,128.25 : 97,539.29 = 31,743.70 : x
  2. Step 2: Convert to fraction form
    65,128.25/97,539.29 = 31,743.70/x
  3. Step 3: Cross multiply
    65,128.25x = 97,539.29 × 31,743.70
  4. Step 4: Simplify right side
    65,128.25x = 3,096,257,676.45
  5. Step 5: Solve for x
    x = 3,096,257,676.45/65,128.25
  6. Step 6: Final answer
    x = 47,540.93

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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.