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Finding the Fourth Proportional to 54,012.60, 81,018.90 and 50,729.40

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Solution

The fourth proportional to 54,012.60, 81,018.90 and 50,729.40 is: 76,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,012.60 : 81,018.90 = 50,729.40 : x
  2. Step 2: Convert to fraction form
    54,012.60/81,018.90 = 50,729.40/x
  3. Step 3: Cross multiply
    54,012.60x = 81,018.90 × 50,729.40
  4. Step 4: Simplify right side
    54,012.60x = 4,110,040,185.66
  5. Step 5: Solve for x
    x = 4,110,040,185.66/54,012.60
  6. Step 6: Final answer
    x = 76,094.10

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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.