Home / 50,722.13-69,999.78-28,366.13

Finding the Fourth Proportional to 50,722.13, 69,999.78 and 28,366.13

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Solution

The fourth proportional to 50,722.13, 69,999.78 and 28,366.13 is: 39,147.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,722.13 : 69,999.78 = 28,366.13 : x
  2. Step 2: Convert to fraction form
    50,722.13/69,999.78 = 28,366.13/x
  3. Step 3: Cross multiply
    50,722.13x = 69,999.78 × 28,366.13
  4. Step 4: Simplify right side
    50,722.13x = 1,985,622,859.45
  5. Step 5: Solve for x
    x = 1,985,622,859.45/50,722.13
  6. Step 6: Final answer
    x = 39,147.07

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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.