Home / 81,651.72-122,477.58-26,252.04

Finding the Fourth Proportional to 81,651.72, 122,477.58 and 26,252.04

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Solution

The fourth proportional to 81,651.72, 122,477.58 and 26,252.04 is: 39,378.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,651.72 : 122,477.58 = 26,252.04 : x
  2. Step 2: Convert to fraction form
    81,651.72/122,477.58 = 26,252.04/x
  3. Step 3: Cross multiply
    81,651.72x = 122,477.58 × 26,252.04
  4. Step 4: Simplify right side
    81,651.72x = 3,215,286,329.26
  5. Step 5: Solve for x
    x = 3,215,286,329.26/81,651.72
  6. Step 6: Final answer
    x = 39,378.06

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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.