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Finding the Fourth Proportional to 66,955.60, 92,401.46 and 40,092.76

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Solution

The fourth proportional to 66,955.60, 92,401.46 and 40,092.76 is: 55,329.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,955.60 : 92,401.46 = 40,092.76 : x
  2. Step 2: Convert to fraction form
    66,955.60/92,401.46 = 40,092.76/x
  3. Step 3: Cross multiply
    66,955.60x = 92,401.46 × 40,092.76
  4. Step 4: Simplify right side
    66,955.60x = 3,704,629,559.43
  5. Step 5: Solve for x
    x = 3,704,629,559.43/66,955.60
  6. Step 6: Final answer
    x = 55,329.64

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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.