Home / 54,347.24-81,524.34-18,811.98

Finding the Fourth Proportional to 54,347.24, 81,524.34 and 18,811.98

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Solution

The fourth proportional to 54,347.24, 81,524.34 and 18,811.98 is: 28,219.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,347.24 : 81,524.34 = 18,811.98 : x
  2. Step 2: Convert to fraction form
    54,347.24/81,524.34 = 18,811.98/x
  3. Step 3: Cross multiply
    54,347.24x = 81,524.34 × 18,811.98
  4. Step 4: Simplify right side
    54,347.24x = 1,533,634,253.59
  5. Step 5: Solve for x
    x = 1,533,634,253.59/54,347.24
  6. Step 6: Final answer
    x = 28,219.18

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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.