Home / 84,243.57-126,365.28-21,914.07

Finding the Fourth Proportional to 84,243.57, 126,365.28 and 21,914.07

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Solution

The fourth proportional to 84,243.57, 126,365.28 and 21,914.07 is: 32,871.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,243.57 : 126,365.28 = 21,914.07 : x
  2. Step 2: Convert to fraction form
    84,243.57/126,365.28 = 21,914.07/x
  3. Step 3: Cross multiply
    84,243.57x = 126,365.28 × 21,914.07
  4. Step 4: Simplify right side
    84,243.57x = 2,769,177,591.49
  5. Step 5: Solve for x
    x = 2,769,177,591.49/84,243.57
  6. Step 6: Final answer
    x = 32,871.09

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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.