Home / 54,491.34-81,730.80-18,945.84

Finding the Fourth Proportional to 54,491.34, 81,730.80 and 18,945.84

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Solution

The fourth proportional to 54,491.34, 81,730.80 and 18,945.84 is: 28,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,491.34 : 81,730.80 = 18,945.84 : x
  2. Step 2: Convert to fraction form
    54,491.34/81,730.80 = 18,945.84/x
  3. Step 3: Cross multiply
    54,491.34x = 81,730.80 × 18,945.84
  4. Step 4: Simplify right side
    54,491.34x = 1,548,458,659.87
  5. Step 5: Solve for x
    x = 1,548,458,659.87/54,491.34
  6. Step 6: Final answer
    x = 28,416.60

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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.