Home / 80,783.36-121,200.96-36,391.04

Finding the Fourth Proportional to 80,783.36, 121,200.96 and 36,391.04

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Solution

The fourth proportional to 80,783.36, 121,200.96 and 36,391.04 is: 54,598.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,783.36 : 121,200.96 = 36,391.04 : x
  2. Step 2: Convert to fraction form
    80,783.36/121,200.96 = 36,391.04/x
  3. Step 3: Cross multiply
    80,783.36x = 121,200.96 × 36,391.04
  4. Step 4: Simplify right side
    80,783.36x = 4,410,628,983.40
  5. Step 5: Solve for x
    x = 4,410,628,983.40/80,783.36
  6. Step 6: Final answer
    x = 54,598.24

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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.