Home / 84,245.07-126,325.35-28,065.43

Finding the Fourth Proportional to 84,245.07, 126,325.35 and 28,065.43

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Solution

The fourth proportional to 84,245.07, 126,325.35 and 28,065.43 is: 42,084.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,245.07 : 126,325.35 = 28,065.43 : x
  2. Step 2: Convert to fraction form
    84,245.07/126,325.35 = 28,065.43/x
  3. Step 3: Cross multiply
    84,245.07x = 126,325.35 × 28,065.43
  4. Step 4: Simplify right side
    84,245.07x = 3,545,375,267.65
  5. Step 5: Solve for x
    x = 3,545,375,267.65/84,245.07
  6. Step 6: Final answer
    x = 42,084.07

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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.