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Finding the Fourth Proportional to 66,300, 91,494 and 36,492

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Solution

The fourth proportional to 66,300, 91,494 and 36,492 is: 50,358.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,300 : 91,494 = 36,492 : x
  2. Step 2: Convert to fraction form
    66,300/91,494 = 36,492/x
  3. Step 3: Cross multiply
    66,300x = 91,494 × 36,492
  4. Step 4: Simplify right side
    66,300x = 3,338,799,048
  5. Step 5: Solve for x
    x = 3,338,799,048/66,300
  6. Step 6: Final answer
    x = 50,358.96

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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.