Home / 74,485.10-111,709.28-44,507.90

Finding the Fourth Proportional to 74,485.10, 111,709.28 and 44,507.90

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Solution

The fourth proportional to 74,485.10, 111,709.28 and 44,507.90 is: 66,750.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,485.10 : 111,709.28 = 44,507.90 : x
  2. Step 2: Convert to fraction form
    74,485.10/111,709.28 = 44,507.90/x
  3. Step 3: Cross multiply
    74,485.10x = 111,709.28 × 44,507.90
  4. Step 4: Simplify right side
    74,485.10x = 4,971,945,463.31
  5. Step 5: Solve for x
    x = 4,971,945,463.31/74,485.10
  6. Step 6: Final answer
    x = 66,750.87

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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.