Home / 65,121.46-97,690.10-18,374.34

Finding the Fourth Proportional to 65,121.46, 97,690.10 and 18,374.34

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Solution

The fourth proportional to 65,121.46, 97,690.10 and 18,374.34 is: 27,563.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,121.46 : 97,690.10 = 18,374.34 : x
  2. Step 2: Convert to fraction form
    65,121.46/97,690.10 = 18,374.34/x
  3. Step 3: Cross multiply
    65,121.46x = 97,690.10 × 18,374.34
  4. Step 4: Simplify right side
    65,121.46x = 1,794,991,112.03
  5. Step 5: Solve for x
    x = 1,794,991,112.03/65,121.46
  6. Step 6: Final answer
    x = 27,563.74

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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.