Home / 81,704.04-122,528.51-31,091.06

Finding the Fourth Proportional to 81,704.04, 122,528.51 and 31,091.06

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Solution

The fourth proportional to 81,704.04, 122,528.51 and 31,091.06 is: 46,626.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,704.04 : 122,528.51 = 31,091.06 : x
  2. Step 2: Convert to fraction form
    81,704.04/122,528.51 = 31,091.06/x
  3. Step 3: Cross multiply
    81,704.04x = 122,528.51 × 31,091.06
  4. Step 4: Simplify right side
    81,704.04x = 3,809,540,488.02
  5. Step 5: Solve for x
    x = 3,809,540,488.02/81,704.04
  6. Step 6: Final answer
    x = 46,626.10

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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.