Home / 81,208.59-121,826.02-25,035.56

Finding the Fourth Proportional to 81,208.59, 121,826.02 and 25,035.56

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Solution

The fourth proportional to 81,208.59, 121,826.02 and 25,035.56 is: 37,557.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,208.59 : 121,826.02 = 25,035.56 : x
  2. Step 2: Convert to fraction form
    81,208.59/121,826.02 = 25,035.56/x
  3. Step 3: Cross multiply
    81,208.59x = 121,826.02 × 25,035.56
  4. Step 4: Simplify right side
    81,208.59x = 3,049,982,024.14
  5. Step 5: Solve for x
    x = 3,049,982,024.14/81,208.59
  6. Step 6: Final answer
    x = 37,557.38

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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.