Home / 45,126.88-67,718.32-21,755.68

Finding the Fourth Proportional to 45,126.88, 67,718.32 and 21,755.68

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Solution

The fourth proportional to 45,126.88, 67,718.32 and 21,755.68 is: 32,647.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,126.88 : 67,718.32 = 21,755.68 : x
  2. Step 2: Convert to fraction form
    45,126.88/67,718.32 = 21,755.68/x
  3. Step 3: Cross multiply
    45,126.88x = 67,718.32 × 21,755.68
  4. Step 4: Simplify right side
    45,126.88x = 1,473,258,100.06
  5. Step 5: Solve for x
    x = 1,473,258,100.06/45,126.88
  6. Step 6: Final answer
    x = 32,647.02

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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.