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Finding the Fourth Proportional to 50,003.80, 74,904.90 and 31,226.20

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Solution

The fourth proportional to 50,003.80, 74,904.90 and 31,226.20 is: 46,776.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,003.80 : 74,904.90 = 31,226.20 : x
  2. Step 2: Convert to fraction form
    50,003.80/74,904.90 = 31,226.20/x
  3. Step 3: Cross multiply
    50,003.80x = 74,904.90 × 31,226.20
  4. Step 4: Simplify right side
    50,003.80x = 2,338,995,388.38
  5. Step 5: Solve for x
    x = 2,338,995,388.38/50,003.80
  6. Step 6: Final answer
    x = 46,776.35

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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.