Home / 84,237.20-126,313.54-28,057.56

Finding the Fourth Proportional to 84,237.20, 126,313.54 and 28,057.56

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Solution

The fourth proportional to 84,237.20, 126,313.54 and 28,057.56 is: 42,072.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,237.20 : 126,313.54 = 28,057.56 : x
  2. Step 2: Convert to fraction form
    84,237.20/126,313.54 = 28,057.56/x
  3. Step 3: Cross multiply
    84,237.20x = 126,313.54 × 28,057.56
  4. Step 4: Simplify right side
    84,237.20x = 3,544,049,727.36
  5. Step 5: Solve for x
    x = 3,544,049,727.36/84,237.20
  6. Step 6: Final answer
    x = 42,072.26

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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.