Home / 84,048.22-126,078.61-30,752.65

Finding the Fourth Proportional to 84,048.22, 126,078.61 and 30,752.65

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Solution

The fourth proportional to 84,048.22, 126,078.61 and 30,752.65 is: 46,131.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,048.22 : 126,078.61 = 30,752.65 : x
  2. Step 2: Convert to fraction form
    84,048.22/126,078.61 = 30,752.65/x
  3. Step 3: Cross multiply
    84,048.22x = 126,078.61 × 30,752.65
  4. Step 4: Simplify right side
    84,048.22x = 3,877,251,365.82
  5. Step 5: Solve for x
    x = 3,877,251,365.82/84,048.22
  6. Step 6: Final answer
    x = 46,131.27

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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.