Home / 56,218.10-84,359.55-21,182.90

Finding the Fourth Proportional to 56,218.10, 84,359.55 and 21,182.90

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Solution

The fourth proportional to 56,218.10, 84,359.55 and 21,182.90 is: 31,786.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,218.10 : 84,359.55 = 21,182.90 : x
  2. Step 2: Convert to fraction form
    56,218.10/84,359.55 = 21,182.90/x
  3. Step 3: Cross multiply
    56,218.10x = 84,359.55 × 21,182.90
  4. Step 4: Simplify right side
    56,218.10x = 1,786,979,911.70
  5. Step 5: Solve for x
    x = 1,786,979,911.70/56,218.10
  6. Step 6: Final answer
    x = 31,786.56

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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.