Home / 49,401.40-74,111.70-21,321.40

Finding the Fourth Proportional to 49,401.40, 74,111.70 and 21,321.40

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Solution

The fourth proportional to 49,401.40, 74,111.70 and 21,321.40 is: 31,986.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,401.40 : 74,111.70 = 21,321.40 : x
  2. Step 2: Convert to fraction form
    49,401.40/74,111.70 = 21,321.40/x
  3. Step 3: Cross multiply
    49,401.40x = 74,111.70 × 21,321.40
  4. Step 4: Simplify right side
    49,401.40x = 1,580,165,200.38
  5. Step 5: Solve for x
    x = 1,580,165,200.38/49,401.40
  6. Step 6: Final answer
    x = 31,986.24

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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.