Home / 50,722.81-69,996.99-28,366.81

Finding the Fourth Proportional to 50,722.81, 69,996.99 and 28,366.81

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Solution

The fourth proportional to 50,722.81, 69,996.99 and 28,366.81 is: 39,145.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,722.81 : 69,996.99 = 28,366.81 : x
  2. Step 2: Convert to fraction form
    50,722.81/69,996.99 = 28,366.81/x
  3. Step 3: Cross multiply
    50,722.81x = 69,996.99 × 28,366.81
  4. Step 4: Simplify right side
    50,722.81x = 1,985,591,315.90
  5. Step 5: Solve for x
    x = 1,985,591,315.90/50,722.81
  6. Step 6: Final answer
    x = 39,145.92

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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.