Home / 45,099.77-67,648.10-11,819.57

Finding the Fourth Proportional to 45,099.77, 67,648.10 and 11,819.57

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Solution

The fourth proportional to 45,099.77, 67,648.10 and 11,819.57 is: 17,728.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,099.77 : 67,648.10 = 11,819.57 : x
  2. Step 2: Convert to fraction form
    45,099.77/67,648.10 = 11,819.57/x
  3. Step 3: Cross multiply
    45,099.77x = 67,648.10 × 11,819.57
  4. Step 4: Simplify right side
    45,099.77x = 799,571,055.98
  5. Step 5: Solve for x
    x = 799,571,055.98/45,099.77
  6. Step 6: Final answer
    x = 17,728.94

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1.5x scale

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.