Home / 81,500.10-122,385.96-55,016.88

Finding the Fourth Proportional to 81,500.10, 122,385.96 and 55,016.88

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Solution

The fourth proportional to 81,500.10, 122,385.96 and 55,016.88 is: 82,617.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,500.10 : 122,385.96 = 55,016.88 : x
  2. Step 2: Convert to fraction form
    81,500.10/122,385.96 = 55,016.88/x
  3. Step 3: Cross multiply
    81,500.10x = 122,385.96 × 55,016.88
  4. Step 4: Simplify right side
    81,500.10x = 6,733,293,675.00
  5. Step 5: Solve for x
    x = 6,733,293,675.00/81,500.10
  6. Step 6: Final answer
    x = 82,617.00

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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.