Home / 74,014.20-111,021.30-18,610.20

Finding the Fourth Proportional to 74,014.20, 111,021.30 and 18,610.20

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Solution

The fourth proportional to 74,014.20, 111,021.30 and 18,610.20 is: 27,915.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,014.20 : 111,021.30 = 18,610.20 : x
  2. Step 2: Convert to fraction form
    74,014.20/111,021.30 = 18,610.20/x
  3. Step 3: Cross multiply
    74,014.20x = 111,021.30 × 18,610.20
  4. Step 4: Simplify right side
    74,014.20x = 2,066,128,597.26
  5. Step 5: Solve for x
    x = 2,066,128,597.26/74,014.20
  6. Step 6: Final answer
    x = 27,915.30

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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.