Home / 65,204.64-97,770.24-20,820.96

Finding the Fourth Proportional to 65,204.64, 97,770.24 and 20,820.96

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Solution

The fourth proportional to 65,204.64, 97,770.24 and 20,820.96 is: 31,219.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,204.64 : 97,770.24 = 20,820.96 : x
  2. Step 2: Convert to fraction form
    65,204.64/97,770.24 = 20,820.96/x
  3. Step 3: Cross multiply
    65,204.64x = 97,770.24 × 20,820.96
  4. Step 4: Simplify right side
    65,204.64x = 2,035,670,256.23
  5. Step 5: Solve for x
    x = 2,035,670,256.23/65,204.64
  6. Step 6: Final answer
    x = 31,219.71

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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.