Home / 50,105.99-69,129.09-28,580.27

Finding the Fourth Proportional to 50,105.99, 69,129.09 and 28,580.27

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Solution

The fourth proportional to 50,105.99, 69,129.09 and 28,580.27 is: 39,430.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,105.99 : 69,129.09 = 28,580.27 : x
  2. Step 2: Convert to fraction form
    50,105.99/69,129.09 = 28,580.27/x
  3. Step 3: Cross multiply
    50,105.99x = 69,129.09 × 28,580.27
  4. Step 4: Simplify right side
    50,105.99x = 1,975,727,818.58
  5. Step 5: Solve for x
    x = 1,975,727,818.58/50,105.99
  6. Step 6: Final answer
    x = 39,430.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.