Home / 77,525.24-106,928.91-71,172

Finding the Fourth Proportional to 77,525.24, 106,928.91 and 71,172

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Solution

The fourth proportional to 77,525.24, 106,928.91 and 71,172 is: 98,166.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,525.24 : 106,928.91 = 71,172 : x
  2. Step 2: Convert to fraction form
    77,525.24/106,928.91 = 71,172/x
  3. Step 3: Cross multiply
    77,525.24x = 106,928.91 × 71,172
  4. Step 4: Simplify right side
    77,525.24x = 7,610,344,382.52
  5. Step 5: Solve for x
    x = 7,610,344,382.52/77,525.24
  6. Step 6: Final answer
    x = 98,166.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.