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Finding the Fourth Proportional to 49,953.60, 74,881.69 and 19,958.89

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Solution

The fourth proportional to 49,953.60, 74,881.69 and 19,958.89 is: 29,918.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,953.60 : 74,881.69 = 19,958.89 : x
  2. Step 2: Convert to fraction form
    49,953.60/74,881.69 = 19,958.89/x
  3. Step 3: Cross multiply
    49,953.60x = 74,881.69 × 19,958.89
  4. Step 4: Simplify right side
    49,953.60x = 1,494,555,313.93
  5. Step 5: Solve for x
    x = 1,494,555,313.93/49,953.60
  6. Step 6: Final answer
    x = 29,918.87

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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.