Home / 79,485.72-119,131.74-43,945.62

Finding the Fourth Proportional to 79,485.72, 119,131.74 and 43,945.62

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Solution

The fourth proportional to 79,485.72, 119,131.74 and 43,945.62 is: 65,864.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,485.72 : 119,131.74 = 43,945.62 : x
  2. Step 2: Convert to fraction form
    79,485.72/119,131.74 = 43,945.62/x
  3. Step 3: Cross multiply
    79,485.72x = 119,131.74 × 43,945.62
  4. Step 4: Simplify right side
    79,485.72x = 5,235,318,175.98
  5. Step 5: Solve for x
    x = 5,235,318,175.98/79,485.72
  6. Step 6: Final answer
    x = 65,864.89

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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.