Home / 90,782.64-125,268.12-50,488.38

Finding the Fourth Proportional to 90,782.64, 125,268.12 and 50,488.38

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Solution

The fourth proportional to 90,782.64, 125,268.12 and 50,488.38 is: 69,667.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,782.64 : 125,268.12 = 50,488.38 : x
  2. Step 2: Convert to fraction form
    90,782.64/125,268.12 = 50,488.38/x
  3. Step 3: Cross multiply
    90,782.64x = 125,268.12 × 50,488.38
  4. Step 4: Simplify right side
    90,782.64x = 6,324,584,444.45
  5. Step 5: Solve for x
    x = 6,324,584,444.45/90,782.64
  6. Step 6: Final answer
    x = 69,667.33

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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.