Home / 49,983.40-74,975.10-13,047.40

Finding the Fourth Proportional to 49,983.40, 74,975.10 and 13,047.40

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Solution

The fourth proportional to 49,983.40, 74,975.10 and 13,047.40 is: 19,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,983.40 : 74,975.10 = 13,047.40 : x
  2. Step 2: Convert to fraction form
    49,983.40/74,975.10 = 13,047.40/x
  3. Step 3: Cross multiply
    49,983.40x = 74,975.10 × 13,047.40
  4. Step 4: Simplify right side
    49,983.40x = 978,230,119.74
  5. Step 5: Solve for x
    x = 978,230,119.74/49,983.40
  6. Step 6: Final answer
    x = 19,571.10

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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.