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Finding the Fourth Proportional to 36,568.78, 54,857.73 and 12,870.73

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Solution

The fourth proportional to 36,568.78, 54,857.73 and 12,870.73 is: 19,307.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,568.78 : 54,857.73 = 12,870.73 : x
  2. Step 2: Convert to fraction form
    36,568.78/54,857.73 = 12,870.73/x
  3. Step 3: Cross multiply
    36,568.78x = 54,857.73 × 12,870.73
  4. Step 4: Simplify right side
    36,568.78x = 706,059,031.24
  5. Step 5: Solve for x
    x = 706,059,031.24/36,568.78
  6. Step 6: Final answer
    x = 19,307.70

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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.