Home / 50,030.80-69,021.08-28,805.56

Finding the Fourth Proportional to 50,030.80, 69,021.08 and 28,805.56

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Solution

The fourth proportional to 50,030.80, 69,021.08 and 28,805.56 is: 39,739.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,030.80 : 69,021.08 = 28,805.56 : x
  2. Step 2: Convert to fraction form
    50,030.80/69,021.08 = 28,805.56/x
  3. Step 3: Cross multiply
    50,030.80x = 69,021.08 × 28,805.56
  4. Step 4: Simplify right side
    50,030.80x = 1,988,190,861.20
  5. Step 5: Solve for x
    x = 1,988,190,861.20/50,030.80
  6. Step 6: Final answer
    x = 39,739.34

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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.