Home / 56,775.12-85,163.32-21,716.56

Finding the Fourth Proportional to 56,775.12, 85,163.32 and 21,716.56

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Solution

The fourth proportional to 56,775.12, 85,163.32 and 21,716.56 is: 32,575.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,775.12 : 85,163.32 = 21,716.56 : x
  2. Step 2: Convert to fraction form
    56,775.12/85,163.32 = 21,716.56/x
  3. Step 3: Cross multiply
    56,775.12x = 85,163.32 × 21,716.56
  4. Step 4: Simplify right side
    56,775.12x = 1,849,454,348.58
  5. Step 5: Solve for x
    x = 1,849,454,348.58/56,775.12
  6. Step 6: Final answer
    x = 32,575.08

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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.