Home / 81,632.25-122,411.43-29,043.12

Finding the Fourth Proportional to 81,632.25, 122,411.43 and 29,043.12

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Solution

The fourth proportional to 81,632.25, 122,411.43 and 29,043.12 is: 43,551.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,632.25 : 122,411.43 = 29,043.12 : x
  2. Step 2: Convert to fraction form
    81,632.25/122,411.43 = 29,043.12/x
  3. Step 3: Cross multiply
    81,632.25x = 122,411.43 × 29,043.12
  4. Step 4: Simplify right side
    81,632.25x = 3,555,209,850.86
  5. Step 5: Solve for x
    x = 3,555,209,850.86/81,632.25
  6. Step 6: Final answer
    x = 43,551.54

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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.