Home / 50,211.59-69,291.41-28,990.40

Finding the Fourth Proportional to 50,211.59, 69,291.41 and 28,990.40

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Solution

The fourth proportional to 50,211.59, 69,291.41 and 28,990.40 is: 40,006.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,211.59 : 69,291.41 = 28,990.40 : x
  2. Step 2: Convert to fraction form
    50,211.59/69,291.41 = 28,990.40/x
  3. Step 3: Cross multiply
    50,211.59x = 69,291.41 × 28,990.40
  4. Step 4: Simplify right side
    50,211.59x = 2,008,785,201.05
  5. Step 5: Solve for x
    x = 2,008,785,201.05/50,211.59
  6. Step 6: Final answer
    x = 40,006.41

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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.