Home / 54,350.15-81,530.81-18,811.41

Finding the Fourth Proportional to 54,350.15, 81,530.81 and 18,811.41

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Solution

The fourth proportional to 54,350.15, 81,530.81 and 18,811.41 is: 28,219.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,350.15 : 81,530.81 = 18,811.41 : x
  2. Step 2: Convert to fraction form
    54,350.15/81,530.81 = 18,811.41/x
  3. Step 3: Cross multiply
    54,350.15x = 81,530.81 × 18,811.41
  4. Step 4: Simplify right side
    54,350.15x = 1,533,709,638.59
  5. Step 5: Solve for x
    x = 1,533,709,638.59/54,350.15
  6. Step 6: Final answer
    x = 28,219.05

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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.