Home / 50,785.79-76,159.85-21,205.60

Finding the Fourth Proportional to 50,785.79, 76,159.85 and 21,205.60

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Solution

The fourth proportional to 50,785.79, 76,159.85 and 21,205.60 is: 31,800.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,785.79 : 76,159.85 = 21,205.60 : x
  2. Step 2: Convert to fraction form
    50,785.79/76,159.85 = 21,205.60/x
  3. Step 3: Cross multiply
    50,785.79x = 76,159.85 × 21,205.60
  4. Step 4: Simplify right side
    50,785.79x = 1,615,015,018.73
  5. Step 5: Solve for x
    x = 1,615,015,018.73/50,785.79
  6. Step 6: Final answer
    x = 31,800.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.