Home / 81,884.07-122,820.59-22,720.25

Finding the Fourth Proportional to 81,884.07, 122,820.59 and 22,720.25

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Solution

The fourth proportional to 81,884.07, 122,820.59 and 22,720.25 is: 34,078.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,884.07 : 122,820.59 = 22,720.25 : x
  2. Step 2: Convert to fraction form
    81,884.07/122,820.59 = 22,720.25/x
  3. Step 3: Cross multiply
    81,884.07x = 122,820.59 × 22,720.25
  4. Step 4: Simplify right side
    81,884.07x = 2,790,513,782.24
  5. Step 5: Solve for x
    x = 2,790,513,782.24/81,884.07
  6. Step 6: Final answer
    x = 34,078.84

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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.