Home / 45,702.54-68,555.24-12,423.31

Finding the Fourth Proportional to 45,702.54, 68,555.24 and 12,423.31

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Solution

The fourth proportional to 45,702.54, 68,555.24 and 12,423.31 is: 18,635.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,702.54 : 68,555.24 = 12,423.31 : x
  2. Step 2: Convert to fraction form
    45,702.54/68,555.24 = 12,423.31/x
  3. Step 3: Cross multiply
    45,702.54x = 68,555.24 × 12,423.31
  4. Step 4: Simplify right side
    45,702.54x = 851,682,811.73
  5. Step 5: Solve for x
    x = 851,682,811.73/45,702.54
  6. Step 6: Final answer
    x = 18,635.35

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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.