Home / 72,962.54-109,434-20,377.34

Finding the Fourth Proportional to 72,962.54, 109,434 and 20,377.34

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Solution

The fourth proportional to 72,962.54, 109,434 and 20,377.34 is: 30,563.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,962.54 : 109,434 = 20,377.34 : x
  2. Step 2: Convert to fraction form
    72,962.54/109,434 = 20,377.34/x
  3. Step 3: Cross multiply
    72,962.54x = 109,434 × 20,377.34
  4. Step 4: Simplify right side
    72,962.54x = 2,229,973,825.56
  5. Step 5: Solve for x
    x = 2,229,973,825.56/72,962.54
  6. Step 6: Final answer
    x = 30,563.27

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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.