Home / 45,285.63-67,931.57-18,963.87

Finding the Fourth Proportional to 45,285.63, 67,931.57 and 18,963.87

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Solution

The fourth proportional to 45,285.63, 67,931.57 and 18,963.87 is: 28,447.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,285.63 : 67,931.57 = 18,963.87 : x
  2. Step 2: Convert to fraction form
    45,285.63/67,931.57 = 18,963.87/x
  3. Step 3: Cross multiply
    45,285.63x = 67,931.57 × 18,963.87
  4. Step 4: Simplify right side
    45,285.63x = 1,288,245,367.56
  5. Step 5: Solve for x
    x = 1,288,245,367.56/45,285.63
  6. Step 6: Final answer
    x = 28,447.11

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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.