Home / 74,227.07-111,318.83-20,915.51

Finding the Fourth Proportional to 74,227.07, 111,318.83 and 20,915.51

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Solution

The fourth proportional to 74,227.07, 111,318.83 and 20,915.51 is: 31,367.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,227.07 : 111,318.83 = 20,915.51 : x
  2. Step 2: Convert to fraction form
    74,227.07/111,318.83 = 20,915.51/x
  3. Step 3: Cross multiply
    74,227.07x = 111,318.83 × 20,915.51
  4. Step 4: Simplify right side
    74,227.07x = 2,328,289,440.88
  5. Step 5: Solve for x
    x = 2,328,289,440.88/74,227.07
  6. Step 6: Final answer
    x = 31,367.12

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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.