Home / 45,381.60-68,072.40-27,861.30

Finding the Fourth Proportional to 45,381.60, 68,072.40 and 27,861.30

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Solution

The fourth proportional to 45,381.60, 68,072.40 and 27,861.30 is: 41,791.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,381.60 : 68,072.40 = 27,861.30 : x
  2. Step 2: Convert to fraction form
    45,381.60/68,072.40 = 27,861.30/x
  3. Step 3: Cross multiply
    45,381.60x = 68,072.40 × 27,861.30
  4. Step 4: Simplify right side
    45,381.60x = 1,896,585,558.12
  5. Step 5: Solve for x
    x = 1,896,585,558.12/45,381.60
  6. Step 6: Final answer
    x = 41,791.95

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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.