Home / 74,260.67-111,389.16-21,670.61

Finding the Fourth Proportional to 74,260.67, 111,389.16 and 21,670.61

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Solution

The fourth proportional to 74,260.67, 111,389.16 and 21,670.61 is: 32,505.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,260.67 : 111,389.16 = 21,670.61 : x
  2. Step 2: Convert to fraction form
    74,260.67/111,389.16 = 21,670.61/x
  3. Step 3: Cross multiply
    74,260.67x = 111,389.16 × 21,670.61
  4. Step 4: Simplify right side
    74,260.67x = 2,413,870,936.23
  5. Step 5: Solve for x
    x = 2,413,870,936.23/74,260.67
  6. Step 6: Final answer
    x = 32,505.38

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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.