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Finding the Fourth Proportional to 54,293.70, 81,444.60 and 19,228.80

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Solution

The fourth proportional to 54,293.70, 81,444.60 and 19,228.80 is: 28,844.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,293.70 : 81,444.60 = 19,228.80 : x
  2. Step 2: Convert to fraction form
    54,293.70/81,444.60 = 19,228.80/x
  3. Step 3: Cross multiply
    54,293.70x = 81,444.60 × 19,228.80
  4. Step 4: Simplify right side
    54,293.70x = 1,566,081,924.48
  5. Step 5: Solve for x
    x = 1,566,081,924.48/54,293.70
  6. Step 6: Final answer
    x = 28,844.63

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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.