Home / 56,725.50-85,078.22-21,178.84

Finding the Fourth Proportional to 56,725.50, 85,078.22 and 21,178.84

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Solution

The fourth proportional to 56,725.50, 85,078.22 and 21,178.84 is: 31,764.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,725.50 : 85,078.22 = 21,178.84 : x
  2. Step 2: Convert to fraction form
    56,725.50/85,078.22 = 21,178.84/x
  3. Step 3: Cross multiply
    56,725.50x = 85,078.22 × 21,178.84
  4. Step 4: Simplify right side
    56,725.50x = 1,801,858,008.86
  5. Step 5: Solve for x
    x = 1,801,858,008.86/56,725.50
  6. Step 6: Final answer
    x = 31,764.52

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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.