Home / 74,285.64-111,246.66-67,089.06

Finding the Fourth Proportional to 74,285.64, 111,246.66 and 67,089.06

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Solution

The fourth proportional to 74,285.64, 111,246.66 and 67,089.06 is: 100,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,285.64 : 111,246.66 = 67,089.06 : x
  2. Step 2: Convert to fraction form
    74,285.64/111,246.66 = 67,089.06/x
  3. Step 3: Cross multiply
    74,285.64x = 111,246.66 × 67,089.06
  4. Step 4: Simplify right side
    74,285.64x = 7,463,433,847.54
  5. Step 5: Solve for x
    x = 7,463,433,847.54/74,285.64
  6. Step 6: Final answer
    x = 100,469.40

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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.