Home / 90,828.64-125,324.58-55,021.24

Finding the Fourth Proportional to 90,828.64, 125,324.58 and 55,021.24

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Solution

The fourth proportional to 90,828.64, 125,324.58 and 55,021.24 is: 75,917.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,828.64 : 125,324.58 = 55,021.24 : x
  2. Step 2: Convert to fraction form
    90,828.64/125,324.58 = 55,021.24/x
  3. Step 3: Cross multiply
    90,828.64x = 125,324.58 × 55,021.24
  4. Step 4: Simplify right side
    90,828.64x = 6,895,513,794.08
  5. Step 5: Solve for x
    x = 6,895,513,794.08/90,828.64
  6. Step 6: Final answer
    x = 75,917.84

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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.