Home / 81,181.08-121,783.08-25,025.76

Finding the Fourth Proportional to 81,181.08, 121,783.08 and 25,025.76

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Solution

The fourth proportional to 81,181.08, 121,783.08 and 25,025.76 is: 37,542.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,181.08 : 121,783.08 = 25,025.76 : x
  2. Step 2: Convert to fraction form
    81,181.08/121,783.08 = 25,025.76/x
  3. Step 3: Cross multiply
    81,181.08x = 121,783.08 × 25,025.76
  4. Step 4: Simplify right side
    81,181.08x = 3,047,714,132.14
  5. Step 5: Solve for x
    x = 3,047,714,132.14/81,181.08
  6. Step 6: Final answer
    x = 37,542.17

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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.