Home / 50,135.88-69,189.42-28,629.13

Finding the Fourth Proportional to 50,135.88, 69,189.42 and 28,629.13

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Solution

The fourth proportional to 50,135.88, 69,189.42 and 28,629.13 is: 39,509.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,135.88 : 69,189.42 = 28,629.13 : x
  2. Step 2: Convert to fraction form
    50,135.88/69,189.42 = 28,629.13/x
  3. Step 3: Cross multiply
    50,135.88x = 69,189.42 × 28,629.13
  4. Step 4: Simplify right side
    50,135.88x = 1,980,832,726.83
  5. Step 5: Solve for x
    x = 1,980,832,726.83/50,135.88
  6. Step 6: Final answer
    x = 39,509.28

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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.