Home / 45,947.50-68,920.68-12,667.28

Finding the Fourth Proportional to 45,947.50, 68,920.68 and 12,667.28

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Solution

The fourth proportional to 45,947.50, 68,920.68 and 12,667.28 is: 19,000.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,947.50 : 68,920.68 = 12,667.28 : x
  2. Step 2: Convert to fraction form
    45,947.50/68,920.68 = 12,667.28/x
  3. Step 3: Cross multiply
    45,947.50x = 68,920.68 × 12,667.28
  4. Step 4: Simplify right side
    45,947.50x = 873,037,466.58
  5. Step 5: Solve for x
    x = 873,037,466.58/45,947.50
  6. Step 6: Final answer
    x = 19,000.76

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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.