Home / 72,084.08-108,131.58-19,492.80

Finding the Fourth Proportional to 72,084.08, 108,131.58 and 19,492.80

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Solution

The fourth proportional to 72,084.08, 108,131.58 and 19,492.80 is: 29,240.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,084.08 : 108,131.58 = 19,492.80 : x
  2. Step 2: Convert to fraction form
    72,084.08/108,131.58 = 19,492.80/x
  3. Step 3: Cross multiply
    72,084.08x = 108,131.58 × 19,492.80
  4. Step 4: Simplify right side
    72,084.08x = 2,107,787,262.62
  5. Step 5: Solve for x
    x = 2,107,787,262.62/72,084.08
  6. Step 6: Final answer
    x = 29,240.68

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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.