Home / 74,150.87-111,242.70-40,853.79

Finding the Fourth Proportional to 74,150.87, 111,242.70 and 40,853.79

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Solution

The fourth proportional to 74,150.87, 111,242.70 and 40,853.79 is: 61,289.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,150.87 : 111,242.70 = 40,853.79 : x
  2. Step 2: Convert to fraction form
    74,150.87/111,242.70 = 40,853.79/x
  3. Step 3: Cross multiply
    74,150.87x = 111,242.70 × 40,853.79
  4. Step 4: Simplify right side
    74,150.87x = 4,544,685,904.83
  5. Step 5: Solve for x
    x = 4,544,685,904.83/74,150.87
  6. Step 6: Final answer
    x = 61,289.72

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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.