Home / 81,028.89-121,556.30-34,282.17

Finding the Fourth Proportional to 81,028.89, 121,556.30 and 34,282.17

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Solution

The fourth proportional to 81,028.89, 121,556.30 and 34,282.17 is: 51,428.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,028.89 : 121,556.30 = 34,282.17 : x
  2. Step 2: Convert to fraction form
    81,028.89/121,556.30 = 34,282.17/x
  3. Step 3: Cross multiply
    81,028.89x = 121,556.30 × 34,282.17
  4. Step 4: Simplify right side
    81,028.89x = 4,167,213,569.76
  5. Step 5: Solve for x
    x = 4,167,213,569.76/81,028.89
  6. Step 6: Final answer
    x = 51,428.74

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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.