Home / 45,951.21-68,931.60-12,671.28

Finding the Fourth Proportional to 45,951.21, 68,931.60 and 12,671.28

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Solution

The fourth proportional to 45,951.21, 68,931.60 and 12,671.28 is: 19,008.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,951.21 : 68,931.60 = 12,671.28 : x
  2. Step 2: Convert to fraction form
    45,951.21/68,931.60 = 12,671.28/x
  3. Step 3: Cross multiply
    45,951.21x = 68,931.60 × 12,671.28
  4. Step 4: Simplify right side
    45,951.21x = 873,451,604.45
  5. Step 5: Solve for x
    x = 873,451,604.45/45,951.21
  6. Step 6: Final answer
    x = 19,008.24

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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.