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Finding the Fourth Proportional to 36,453.80, 54,680.70 and 13,077.20

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Solution

The fourth proportional to 36,453.80, 54,680.70 and 13,077.20 is: 19,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,453.80 : 54,680.70 = 13,077.20 : x
  2. Step 2: Convert to fraction form
    36,453.80/54,680.70 = 13,077.20/x
  3. Step 3: Cross multiply
    36,453.80x = 54,680.70 × 13,077.20
  4. Step 4: Simplify right side
    36,453.80x = 715,070,450.04
  5. Step 5: Solve for x
    x = 715,070,450.04/36,453.80
  6. Step 6: Final answer
    x = 19,615.80

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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.