Home / 74,271.15-111,505.61-43,128.75

Finding the Fourth Proportional to 74,271.15, 111,505.61 and 43,128.75

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Solution

The fourth proportional to 74,271.15, 111,505.61 and 43,128.75 is: 64,750.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,271.15 : 111,505.61 = 43,128.75 : x
  2. Step 2: Convert to fraction form
    74,271.15/111,505.61 = 43,128.75/x
  3. Step 3: Cross multiply
    74,271.15x = 111,505.61 × 43,128.75
  4. Step 4: Simplify right side
    74,271.15x = 4,809,097,361.64
  5. Step 5: Solve for x
    x = 4,809,097,361.64/74,271.15
  6. Step 6: Final answer
    x = 64,750.54

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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.