Home / 74,541.42-111,789.37-21,237.75

Finding the Fourth Proportional to 74,541.42, 111,789.37 and 21,237.75

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Solution

The fourth proportional to 74,541.42, 111,789.37 and 21,237.75 is: 31,850.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,541.42 : 111,789.37 = 21,237.75 : x
  2. Step 2: Convert to fraction form
    74,541.42/111,789.37 = 21,237.75/x
  3. Step 3: Cross multiply
    74,541.42x = 111,789.37 × 21,237.75
  4. Step 4: Simplify right side
    74,541.42x = 2,374,154,692.72
  5. Step 5: Solve for x
    x = 2,374,154,692.72/74,541.42
  6. Step 6: Final answer
    x = 31,850.14

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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.