Home / 81,004.54-121,465.20-36,607.24

Finding the Fourth Proportional to 81,004.54, 121,465.20 and 36,607.24

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Solution

The fourth proportional to 81,004.54, 121,465.20 and 36,607.24 is: 54,892.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,004.54 : 121,465.20 = 36,607.24 : x
  2. Step 2: Convert to fraction form
    81,004.54/121,465.20 = 36,607.24/x
  3. Step 3: Cross multiply
    81,004.54x = 121,465.20 × 36,607.24
  4. Step 4: Simplify right side
    81,004.54x = 4,446,505,728.05
  5. Step 5: Solve for x
    x = 4,446,505,728.05/81,004.54
  6. Step 6: Final answer
    x = 54,892.06

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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.