Home / 49,812.55-74,718.81-20,223.45

Finding the Fourth Proportional to 49,812.55, 74,718.81 and 20,223.45

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Solution

The fourth proportional to 49,812.55, 74,718.81 and 20,223.45 is: 30,335.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,812.55 : 74,718.81 = 20,223.45 : x
  2. Step 2: Convert to fraction form
    49,812.55/74,718.81 = 20,223.45/x
  3. Step 3: Cross multiply
    49,812.55x = 74,718.81 × 20,223.45
  4. Step 4: Simplify right side
    49,812.55x = 1,511,072,118.09
  5. Step 5: Solve for x
    x = 1,511,072,118.09/49,812.55
  6. Step 6: Final answer
    x = 30,335.17

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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.