Home / 65,291.98-97,935.23-20,917.75

Finding the Fourth Proportional to 65,291.98, 97,935.23 and 20,917.75

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Solution

The fourth proportional to 65,291.98, 97,935.23 and 20,917.75 is: 31,375.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,291.98 : 97,935.23 = 20,917.75 : x
  2. Step 2: Convert to fraction form
    65,291.98/97,935.23 = 20,917.75/x
  3. Step 3: Cross multiply
    65,291.98x = 97,935.23 × 20,917.75
  4. Step 4: Simplify right side
    65,291.98x = 2,048,584,648.42
  5. Step 5: Solve for x
    x = 2,048,584,648.42/65,291.98
  6. Step 6: Final answer
    x = 31,375.75

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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.