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Finding the Fourth Proportional to 66,755.76, 100,133.42 and 27,312.88

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Solution

The fourth proportional to 66,755.76, 100,133.42 and 27,312.88 is: 40,969.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,755.76 : 100,133.42 = 27,312.88 : x
  2. Step 2: Convert to fraction form
    66,755.76/100,133.42 = 27,312.88/x
  3. Step 3: Cross multiply
    66,755.76x = 100,133.42 × 27,312.88
  4. Step 4: Simplify right side
    66,755.76x = 2,734,931,885.30
  5. Step 5: Solve for x
    x = 2,734,931,885.30/66,755.76
  6. Step 6: Final answer
    x = 40,969.23

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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.