Home / 50,731.28-70,076.06-38,940.32

Finding the Fourth Proportional to 50,731.28, 70,076.06 and 38,940.32

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Solution

The fourth proportional to 50,731.28, 70,076.06 and 38,940.32 is: 53,788.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,731.28 : 70,076.06 = 38,940.32 : x
  2. Step 2: Convert to fraction form
    50,731.28/70,076.06 = 38,940.32/x
  3. Step 3: Cross multiply
    50,731.28x = 70,076.06 × 38,940.32
  4. Step 4: Simplify right side
    50,731.28x = 2,728,784,200.74
  5. Step 5: Solve for x
    x = 2,728,784,200.74/50,731.28
  6. Step 6: Final answer
    x = 53,788.99

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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.