Home / 49,403.20-74,090.40-19,811.20

Finding the Fourth Proportional to 49,403.20, 74,090.40 and 19,811.20

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Solution

The fourth proportional to 49,403.20, 74,090.40 and 19,811.20 is: 29,711.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,403.20 : 74,090.40 = 19,811.20 : x
  2. Step 2: Convert to fraction form
    49,403.20/74,090.40 = 19,811.20/x
  3. Step 3: Cross multiply
    49,403.20x = 74,090.40 × 19,811.20
  4. Step 4: Simplify right side
    49,403.20x = 1,467,819,732.48
  5. Step 5: Solve for x
    x = 1,467,819,732.48/49,403.20
  6. Step 6: Final answer
    x = 29,711.03

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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.