Home / 49,928.40-74,872.02-20,326.20

Finding the Fourth Proportional to 49,928.40, 74,872.02 and 20,326.20

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Solution

The fourth proportional to 49,928.40, 74,872.02 and 20,326.20 is: 30,480.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,928.40 : 74,872.02 = 20,326.20 : x
  2. Step 2: Convert to fraction form
    49,928.40/74,872.02 = 20,326.20/x
  3. Step 3: Cross multiply
    49,928.40x = 74,872.02 × 20,326.20
  4. Step 4: Simplify right side
    49,928.40x = 1,521,863,652.92
  5. Step 5: Solve for x
    x = 1,521,863,652.92/49,928.40
  6. Step 6: Final answer
    x = 30,480.92

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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.