Home / 81,260.74-121,833.87-31,298.98

Finding the Fourth Proportional to 81,260.74, 121,833.87 and 31,298.98

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Solution

The fourth proportional to 81,260.74, 121,833.87 and 31,298.98 is: 46,926.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,260.74 : 121,833.87 = 31,298.98 : x
  2. Step 2: Convert to fraction form
    81,260.74/121,833.87 = 31,298.98/x
  3. Step 3: Cross multiply
    81,260.74x = 121,833.87 × 31,298.98
  4. Step 4: Simplify right side
    81,260.74x = 3,813,275,860.45
  5. Step 5: Solve for x
    x = 3,813,275,860.45/81,260.74
  6. Step 6: Final answer
    x = 46,926.42

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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.