Home / 90,763.49-125,256.81-50,478.95

Finding the Fourth Proportional to 90,763.49, 125,256.81 and 50,478.95

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Solution

The fourth proportional to 90,763.49, 125,256.81 and 50,478.95 is: 69,662.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,763.49 : 125,256.81 = 50,478.95 : x
  2. Step 2: Convert to fraction form
    90,763.49/125,256.81 = 50,478.95/x
  3. Step 3: Cross multiply
    90,763.49x = 125,256.81 × 50,478.95
  4. Step 4: Simplify right side
    90,763.49x = 6,322,832,249.15
  5. Step 5: Solve for x
    x = 6,322,832,249.15/90,763.49
  6. Step 6: Final answer
    x = 69,662.73

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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.