Home / 81,507.03-122,256.18-22,342.59

Finding the Fourth Proportional to 81,507.03, 122,256.18 and 22,342.59

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Solution

The fourth proportional to 81,507.03, 122,256.18 and 22,342.59 is: 33,512.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,507.03 : 122,256.18 = 22,342.59 : x
  2. Step 2: Convert to fraction form
    81,507.03/122,256.18 = 22,342.59/x
  3. Step 3: Cross multiply
    81,507.03x = 122,256.18 × 22,342.59
  4. Step 4: Simplify right side
    81,507.03x = 2,731,519,704.71
  5. Step 5: Solve for x
    x = 2,731,519,704.71/81,507.03
  6. Step 6: Final answer
    x = 33,512.69

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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.