Home / 56,918.55-85,402.44-21,850.05

Finding the Fourth Proportional to 56,918.55, 85,402.44 and 21,850.05

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Solution

The fourth proportional to 56,918.55, 85,402.44 and 21,850.05 is: 32,784.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,918.55 : 85,402.44 = 21,850.05 : x
  2. Step 2: Convert to fraction form
    56,918.55/85,402.44 = 21,850.05/x
  3. Step 3: Cross multiply
    56,918.55x = 85,402.44 × 21,850.05
  4. Step 4: Simplify right side
    56,918.55x = 1,866,047,584.12
  5. Step 5: Solve for x
    x = 1,866,047,584.12/56,918.55
  6. Step 6: Final answer
    x = 32,784.52

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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.