Home / 56,919.20-85,403.10-27,321.80

Finding the Fourth Proportional to 56,919.20, 85,403.10 and 27,321.80

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Solution

The fourth proportional to 56,919.20, 85,403.10 and 27,321.80 is: 40,994.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,919.20 : 85,403.10 = 27,321.80 : x
  2. Step 2: Convert to fraction form
    56,919.20/85,403.10 = 27,321.80/x
  3. Step 3: Cross multiply
    56,919.20x = 85,403.10 × 27,321.80
  4. Step 4: Simplify right side
    56,919.20x = 2,333,366,417.58
  5. Step 5: Solve for x
    x = 2,333,366,417.58/56,919.20
  6. Step 6: Final answer
    x = 40,994.36

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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.