Home / 84,245.39-126,325.82-28,065.74

Finding the Fourth Proportional to 84,245.39, 126,325.82 and 28,065.74

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Solution

The fourth proportional to 84,245.39, 126,325.82 and 28,065.74 is: 42,084.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,245.39 : 126,325.82 = 28,065.74 : x
  2. Step 2: Convert to fraction form
    84,245.39/126,325.82 = 28,065.74/x
  3. Step 3: Cross multiply
    84,245.39x = 126,325.82 × 28,065.74
  4. Step 4: Simplify right side
    84,245.39x = 3,545,428,005.39
  5. Step 5: Solve for x
    x = 3,545,428,005.39/84,245.39
  6. Step 6: Final answer
    x = 42,084.54

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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.