Home / 65,231.84-97,820.40-20,846.72

Finding the Fourth Proportional to 65,231.84, 97,820.40 and 20,846.72

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Solution

The fourth proportional to 65,231.84, 97,820.40 and 20,846.72 is: 31,261.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,231.84 : 97,820.40 = 20,846.72 : x
  2. Step 2: Convert to fraction form
    65,231.84/97,820.40 = 20,846.72/x
  3. Step 3: Cross multiply
    65,231.84x = 97,820.40 × 20,846.72
  4. Step 4: Simplify right side
    65,231.84x = 2,039,234,489.09
  5. Step 5: Solve for x
    x = 2,039,234,489.09/65,231.84
  6. Step 6: Final answer
    x = 31,261.34

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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.