Home / 84,528.87-126,745.91-57,904.94

Finding the Fourth Proportional to 84,528.87, 126,745.91 and 57,904.94

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Solution

The fourth proportional to 84,528.87, 126,745.91 and 57,904.94 is: 86,824.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,528.87 : 126,745.91 = 57,904.94 : x
  2. Step 2: Convert to fraction form
    84,528.87/126,745.91 = 57,904.94/x
  3. Step 3: Cross multiply
    84,528.87x = 126,745.91 × 57,904.94
  4. Step 4: Simplify right side
    84,528.87x = 7,339,213,390.54
  5. Step 5: Solve for x
    x = 7,339,213,390.54/84,528.87
  6. Step 6: Final answer
    x = 86,824.93

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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.