Home / 84,220.36-126,328.84-28,064.56

Finding the Fourth Proportional to 84,220.36, 126,328.84 and 28,064.56

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Solution

The fourth proportional to 84,220.36, 126,328.84 and 28,064.56 is: 42,096.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,220.36 : 126,328.84 = 28,064.56 : x
  2. Step 2: Convert to fraction form
    84,220.36/126,328.84 = 28,064.56/x
  3. Step 3: Cross multiply
    84,220.36x = 126,328.84 × 28,064.56
  4. Step 4: Simplify right side
    84,220.36x = 3,545,363,309.91
  5. Step 5: Solve for x
    x = 3,545,363,309.91/84,220.36
  6. Step 6: Final answer
    x = 42,096.27

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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.