Home / 90,858.40-125,383.68-50,571.52

Finding the Fourth Proportional to 90,858.40, 125,383.68 and 50,571.52

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Solution

The fourth proportional to 90,858.40, 125,383.68 and 50,571.52 is: 69,788.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,858.40 : 125,383.68 = 50,571.52 : x
  2. Step 2: Convert to fraction form
    90,858.40/125,383.68 = 50,571.52/x
  3. Step 3: Cross multiply
    90,858.40x = 125,383.68 × 50,571.52
  4. Step 4: Simplify right side
    90,858.40x = 6,340,843,280.79
  5. Step 5: Solve for x
    x = 6,340,843,280.79/90,858.40
  6. Step 6: Final answer
    x = 69,788.19

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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.