Home / 74,112.28-111,171.50-21,521.77

Finding the Fourth Proportional to 74,112.28, 111,171.50 and 21,521.77

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Solution

The fourth proportional to 74,112.28, 111,171.50 and 21,521.77 is: 32,283.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,112.28 : 111,171.50 = 21,521.77 : x
  2. Step 2: Convert to fraction form
    74,112.28/111,171.50 = 21,521.77/x
  3. Step 3: Cross multiply
    74,112.28x = 111,171.50 × 21,521.77
  4. Step 4: Simplify right side
    74,112.28x = 2,392,606,790.09
  5. Step 5: Solve for x
    x = 2,392,606,790.09/74,112.28
  6. Step 6: Final answer
    x = 32,283.54

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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.