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Finding the Fourth Proportional to 37,676.80, 56,428.80 and 36,812.80

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Solution

The fourth proportional to 37,676.80, 56,428.80 and 36,812.80 is: 55,134.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,676.80 : 56,428.80 = 36,812.80 : x
  2. Step 2: Convert to fraction form
    37,676.80/56,428.80 = 36,812.80/x
  3. Step 3: Cross multiply
    37,676.80x = 56,428.80 × 36,812.80
  4. Step 4: Simplify right side
    37,676.80x = 2,077,302,128.64
  5. Step 5: Solve for x
    x = 2,077,302,128.64/37,676.80
  6. Step 6: Final answer
    x = 55,134.78

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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.