Home / 84,329.62-126,480.08-28,163.36

Finding the Fourth Proportional to 84,329.62, 126,480.08 and 28,163.36

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Solution

The fourth proportional to 84,329.62, 126,480.08 and 28,163.36 is: 42,240.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,329.62 : 126,480.08 = 28,163.36 : x
  2. Step 2: Convert to fraction form
    84,329.62/126,480.08 = 28,163.36/x
  3. Step 3: Cross multiply
    84,329.62x = 126,480.08 × 28,163.36
  4. Step 4: Simplify right side
    84,329.62x = 3,562,104,025.87
  5. Step 5: Solve for x
    x = 3,562,104,025.87/84,329.62
  6. Step 6: Final answer
    x = 42,240.25

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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.