Home / 90,813.20-125,322.83-50,528.66

Finding the Fourth Proportional to 90,813.20, 125,322.83 and 50,528.66

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Solution

The fourth proportional to 90,813.20, 125,322.83 and 50,528.66 is: 69,729.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,813.20 : 125,322.83 = 50,528.66 : x
  2. Step 2: Convert to fraction form
    90,813.20/125,322.83 = 50,528.66/x
  3. Step 3: Cross multiply
    90,813.20x = 125,322.83 × 50,528.66
  4. Step 4: Simplify right side
    90,813.20x = 6,332,393,977.53
  5. Step 5: Solve for x
    x = 6,332,393,977.53/90,813.20
  6. Step 6: Final answer
    x = 69,729.89

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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.