Home / 74,419.10-111,628.65-19,015.10

Finding the Fourth Proportional to 74,419.10, 111,628.65 and 19,015.10

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Solution

The fourth proportional to 74,419.10, 111,628.65 and 19,015.10 is: 28,522.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,419.10 : 111,628.65 = 19,015.10 : x
  2. Step 2: Convert to fraction form
    74,419.10/111,628.65 = 19,015.10/x
  3. Step 3: Cross multiply
    74,419.10x = 111,628.65 × 19,015.10
  4. Step 4: Simplify right side
    74,419.10x = 2,122,629,942.62
  5. Step 5: Solve for x
    x = 2,122,629,942.62/74,419.10
  6. Step 6: Final answer
    x = 28,522.65

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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.