Home / 45,071.54-67,614.60-18,778.94

Finding the Fourth Proportional to 45,071.54, 67,614.60 and 18,778.94

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Solution

The fourth proportional to 45,071.54, 67,614.60 and 18,778.94 is: 28,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,071.54 : 67,614.60 = 18,778.94 : x
  2. Step 2: Convert to fraction form
    45,071.54/67,614.60 = 18,778.94/x
  3. Step 3: Cross multiply
    45,071.54x = 67,614.60 × 18,778.94
  4. Step 4: Simplify right side
    45,071.54x = 1,269,730,516.52
  5. Step 5: Solve for x
    x = 1,269,730,516.52/45,071.54
  6. Step 6: Final answer
    x = 28,171.45

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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.