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Finding the Fourth Proportional to 66,992.40, 100,418.67 and 22,603.86

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Solution

The fourth proportional to 66,992.40, 100,418.67 and 22,603.86 is: 33,882.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,992.40 : 100,418.67 = 22,603.86 : x
  2. Step 2: Convert to fraction form
    66,992.40/100,418.67 = 22,603.86/x
  3. Step 3: Cross multiply
    66,992.40x = 100,418.67 × 22,603.86
  4. Step 4: Simplify right side
    66,992.40x = 2,269,849,558.07
  5. Step 5: Solve for x
    x = 2,269,849,558.07/66,992.40
  6. Step 6: Final answer
    x = 33,882.19

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1.5x scale

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.