Home / 65,765.14-90,761.46-40,271.38

Finding the Fourth Proportional to 65,765.14, 90,761.46 and 40,271.38

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Solution

The fourth proportional to 65,765.14, 90,761.46 and 40,271.38 is: 55,577.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,765.14 : 90,761.46 = 40,271.38 : x
  2. Step 2: Convert to fraction form
    65,765.14/90,761.46 = 40,271.38/x
  3. Step 3: Cross multiply
    65,765.14x = 90,761.46 × 40,271.38
  4. Step 4: Simplify right side
    65,765.14x = 3,655,089,245.01
  5. Step 5: Solve for x
    x = 3,655,089,245.01/65,765.14
  6. Step 6: Final answer
    x = 55,577.91

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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.