Home / 56,899.20-85,348.80-19,963.20

Finding the Fourth Proportional to 56,899.20, 85,348.80 and 19,963.20

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Solution

The fourth proportional to 56,899.20, 85,348.80 and 19,963.20 is: 29,944.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,899.20 : 85,348.80 = 19,963.20 : x
  2. Step 2: Convert to fraction form
    56,899.20/85,348.80 = 19,963.20/x
  3. Step 3: Cross multiply
    56,899.20x = 85,348.80 × 19,963.20
  4. Step 4: Simplify right side
    56,899.20x = 1,703,835,164.16
  5. Step 5: Solve for x
    x = 1,703,835,164.16/56,899.20
  6. Step 6: Final answer
    x = 29,944.80

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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.