Home / 90,928.20-125,480.52-50,642.44

Finding the Fourth Proportional to 90,928.20, 125,480.52 and 50,642.44

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Solution

The fourth proportional to 90,928.20, 125,480.52 and 50,642.44 is: 69,886.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,928.20 : 125,480.52 = 50,642.44 : x
  2. Step 2: Convert to fraction form
    90,928.20/125,480.52 = 50,642.44/x
  3. Step 3: Cross multiply
    90,928.20x = 125,480.52 × 50,642.44
  4. Step 4: Simplify right side
    90,928.20x = 6,354,639,705.27
  5. Step 5: Solve for x
    x = 6,354,639,705.27/90,928.20
  6. Step 6: Final answer
    x = 69,886.35

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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.