Home / 78,926.45-108,954.35-50,285.39

Finding the Fourth Proportional to 78,926.45, 108,954.35 and 50,285.39

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Solution

The fourth proportional to 78,926.45, 108,954.35 and 50,285.39 is: 69,416.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,926.45 : 108,954.35 = 50,285.39 : x
  2. Step 2: Convert to fraction form
    78,926.45/108,954.35 = 50,285.39/x
  3. Step 3: Cross multiply
    78,926.45x = 108,954.35 × 50,285.39
  4. Step 4: Simplify right side
    78,926.45x = 5,478,811,185.75
  5. Step 5: Solve for x
    x = 5,478,811,185.75/78,926.45
  6. Step 6: Final answer
    x = 69,416.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.