Home / 50,917.15-76,400.31-20,953.48

Finding the Fourth Proportional to 50,917.15, 76,400.31 and 20,953.48

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Solution

The fourth proportional to 50,917.15, 76,400.31 and 20,953.48 is: 31,440.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,917.15 : 76,400.31 = 20,953.48 : x
  2. Step 2: Convert to fraction form
    50,917.15/76,400.31 = 20,953.48/x
  3. Step 3: Cross multiply
    50,917.15x = 76,400.31 × 20,953.48
  4. Step 4: Simplify right side
    50,917.15x = 1,600,852,520.12
  5. Step 5: Solve for x
    x = 1,600,852,520.12/50,917.15
  6. Step 6: Final answer
    x = 31,440.34

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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.