Home / 45,758.18-68,630.22-12,480.95

Finding the Fourth Proportional to 45,758.18, 68,630.22 and 12,480.95

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Solution

The fourth proportional to 45,758.18, 68,630.22 and 12,480.95 is: 18,719.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,758.18 : 68,630.22 = 12,480.95 : x
  2. Step 2: Convert to fraction form
    45,758.18/68,630.22 = 12,480.95/x
  3. Step 3: Cross multiply
    45,758.18x = 68,630.22 × 12,480.95
  4. Step 4: Simplify right side
    45,758.18x = 856,570,515.88
  5. Step 5: Solve for x
    x = 856,570,515.88/45,758.18
  6. Step 6: Final answer
    x = 18,719.50

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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.