Home / 81,181.13-121,775.79-25,059.63

Finding the Fourth Proportional to 81,181.13, 121,775.79 and 25,059.63

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Solution

The fourth proportional to 81,181.13, 121,775.79 and 25,059.63 is: 37,590.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,181.13 : 121,775.79 = 25,059.63 : x
  2. Step 2: Convert to fraction form
    81,181.13/121,775.79 = 25,059.63/x
  3. Step 3: Cross multiply
    81,181.13x = 121,775.79 × 25,059.63
  4. Step 4: Simplify right side
    81,181.13x = 3,051,656,240.36
  5. Step 5: Solve for x
    x = 3,051,656,240.36/81,181.13
  6. Step 6: Final answer
    x = 37,590.71

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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.