Home / 81,000.46-121,554.92-33,615.60

Finding the Fourth Proportional to 81,000.46, 121,554.92 and 33,615.60

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Solution

The fourth proportional to 81,000.46, 121,554.92 and 33,615.60 is: 50,445.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,000.46 : 121,554.92 = 33,615.60 : x
  2. Step 2: Convert to fraction form
    81,000.46/121,554.92 = 33,615.60/x
  3. Step 3: Cross multiply
    81,000.46x = 121,554.92 × 33,615.60
  4. Step 4: Simplify right side
    81,000.46x = 4,086,141,568.75
  5. Step 5: Solve for x
    x = 4,086,141,568.75/81,000.46
  6. Step 6: Final answer
    x = 50,445.91

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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.