Home / 74,283.44-111,414.20-21,678.80

Finding the Fourth Proportional to 74,283.44, 111,414.20 and 21,678.80

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Solution

The fourth proportional to 74,283.44, 111,414.20 and 21,678.80 is: 32,515.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,283.44 : 111,414.20 = 21,678.80 : x
  2. Step 2: Convert to fraction form
    74,283.44/111,414.20 = 21,678.80/x
  3. Step 3: Cross multiply
    74,283.44x = 111,414.20 × 21,678.80
  4. Step 4: Simplify right side
    74,283.44x = 2,415,326,158.96
  5. Step 5: Solve for x
    x = 2,415,326,158.96/74,283.44
  6. Step 6: Final answer
    x = 32,515.00

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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.