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Finding the Fourth Proportional to 66,970.80, 92,420.66 and 36,755.57

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Solution

The fourth proportional to 66,970.80, 92,420.66 and 36,755.57 is: 50,723.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,970.80 : 92,420.66 = 36,755.57 : x
  2. Step 2: Convert to fraction form
    66,970.80/92,420.66 = 36,755.57/x
  3. Step 3: Cross multiply
    66,970.80x = 92,420.66 × 36,755.57
  4. Step 4: Simplify right side
    66,970.80x = 3,396,974,361.02
  5. Step 5: Solve for x
    x = 3,396,974,361.02/66,970.80
  6. Step 6: Final answer
    x = 50,723.22

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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.