Home / 45,165.15-67,749.84-21,811.23

Finding the Fourth Proportional to 45,165.15, 67,749.84 and 21,811.23

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Solution

The fourth proportional to 45,165.15, 67,749.84 and 21,811.23 is: 32,717.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,165.15 : 67,749.84 = 21,811.23 : x
  2. Step 2: Convert to fraction form
    45,165.15/67,749.84 = 21,811.23/x
  3. Step 3: Cross multiply
    45,165.15x = 67,749.84 × 21,811.23
  4. Step 4: Simplify right side
    45,165.15x = 1,477,707,342.70
  5. Step 5: Solve for x
    x = 1,477,707,342.70/45,165.15
  6. Step 6: Final answer
    x = 32,717.87

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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.