Home / 82,259.10-123,388.65-55,687.05

Finding the Fourth Proportional to 82,259.10, 123,388.65 and 55,687.05

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Solution

The fourth proportional to 82,259.10, 123,388.65 and 55,687.05 is: 83,530.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,259.10 : 123,388.65 = 55,687.05 : x
  2. Step 2: Convert to fraction form
    82,259.10/123,388.65 = 55,687.05/x
  3. Step 3: Cross multiply
    82,259.10x = 123,388.65 × 55,687.05
  4. Step 4: Simplify right side
    82,259.10x = 6,871,149,921.98
  5. Step 5: Solve for x
    x = 6,871,149,921.98/82,259.10
  6. Step 6: Final answer
    x = 83,530.58

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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.