Home / 88,212.43-121,724.36-49,964.34

Finding the Fourth Proportional to 88,212.43, 121,724.36 and 49,964.34

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Solution

The fourth proportional to 88,212.43, 121,724.36 and 49,964.34 is: 68,945.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,212.43 : 121,724.36 = 49,964.34 : x
  2. Step 2: Convert to fraction form
    88,212.43/121,724.36 = 49,964.34/x
  3. Step 3: Cross multiply
    88,212.43x = 121,724.36 × 49,964.34
  4. Step 4: Simplify right side
    88,212.43x = 6,081,877,059.50
  5. Step 5: Solve for x
    x = 6,081,877,059.50/88,212.43
  6. Step 6: Final answer
    x = 68,945.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.