Home / 90,621.72-125,053.92-50,338.26

Finding the Fourth Proportional to 90,621.72, 125,053.92 and 50,338.26

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Solution

The fourth proportional to 90,621.72, 125,053.92 and 50,338.26 is: 69,464.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,621.72 : 125,053.92 = 50,338.26 : x
  2. Step 2: Convert to fraction form
    90,621.72/125,053.92 = 50,338.26/x
  3. Step 3: Cross multiply
    90,621.72x = 125,053.92 × 50,338.26
  4. Step 4: Simplify right side
    90,621.72x = 6,294,996,738.98
  5. Step 5: Solve for x
    x = 6,294,996,738.98/90,621.72
  6. Step 6: Final answer
    x = 69,464.55

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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.