Home / 81,028.26-121,459.31-31,094.95

Finding the Fourth Proportional to 81,028.26, 121,459.31 and 31,094.95

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Solution

The fourth proportional to 81,028.26, 121,459.31 and 31,094.95 is: 46,610.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,028.26 : 121,459.31 = 31,094.95 : x
  2. Step 2: Convert to fraction form
    81,028.26/121,459.31 = 31,094.95/x
  3. Step 3: Cross multiply
    81,028.26x = 121,459.31 × 31,094.95
  4. Step 4: Simplify right side
    81,028.26x = 3,776,771,171.48
  5. Step 5: Solve for x
    x = 3,776,771,171.48/81,028.26
  6. Step 6: Final answer
    x = 46,610.54

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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.