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Finding the Fourth Proportional to 66,705.36, 92,052.68 and 36,491.28

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Solution

The fourth proportional to 66,705.36, 92,052.68 and 36,491.28 is: 50,357.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,705.36 : 92,052.68 = 36,491.28 : x
  2. Step 2: Convert to fraction form
    66,705.36/92,052.68 = 36,491.28/x
  3. Step 3: Cross multiply
    66,705.36x = 92,052.68 × 36,491.28
  4. Step 4: Simplify right side
    66,705.36x = 3,359,120,120.63
  5. Step 5: Solve for x
    x = 3,359,120,120.63/66,705.36
  6. Step 6: Final answer
    x = 50,357.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.