Home / 81,868.24-122,809.65-35,110.18

Finding the Fourth Proportional to 81,868.24, 122,809.65 and 35,110.18

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Solution

The fourth proportional to 81,868.24, 122,809.65 and 35,110.18 is: 52,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,868.24 : 122,809.65 = 35,110.18 : x
  2. Step 2: Convert to fraction form
    81,868.24/122,809.65 = 35,110.18/x
  3. Step 3: Cross multiply
    81,868.24x = 122,809.65 × 35,110.18
  4. Step 4: Simplify right side
    81,868.24x = 4,311,868,917.24
  5. Step 5: Solve for x
    x = 4,311,868,917.24/81,868.24
  6. Step 6: Final answer
    x = 52,668.40

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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.