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Finding the Fourth Proportional to 66,954.40, 100,426.16 and 22,580.20

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Solution

The fourth proportional to 66,954.40, 100,426.16 and 22,580.20 is: 33,868.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,954.40 : 100,426.16 = 22,580.20 : x
  2. Step 2: Convert to fraction form
    66,954.40/100,426.16 = 22,580.20/x
  3. Step 3: Cross multiply
    66,954.40x = 100,426.16 × 22,580.20
  4. Step 4: Simplify right side
    66,954.40x = 2,267,642,778.03
  5. Step 5: Solve for x
    x = 2,267,642,778.03/66,954.40
  6. Step 6: Final answer
    x = 33,868.47

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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.