Home / 74,260.16-111,415.78-21,677.40

Finding the Fourth Proportional to 74,260.16, 111,415.78 and 21,677.40

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Solution

The fourth proportional to 74,260.16, 111,415.78 and 21,677.40 is: 32,523.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,260.16 : 111,415.78 = 21,677.40 : x
  2. Step 2: Convert to fraction form
    74,260.16/111,415.78 = 21,677.40/x
  3. Step 3: Cross multiply
    74,260.16x = 111,415.78 × 21,677.40
  4. Step 4: Simplify right side
    74,260.16x = 2,415,204,429.37
  5. Step 5: Solve for x
    x = 2,415,204,429.37/74,260.16
  6. Step 6: Final answer
    x = 32,523.56

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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.