Home / 56,917.76-85,366.96-20,886.80

Finding the Fourth Proportional to 56,917.76, 85,366.96 and 20,886.80

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Solution

The fourth proportional to 56,917.76, 85,366.96 and 20,886.80 is: 31,326.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,917.76 : 85,366.96 = 20,886.80 : x
  2. Step 2: Convert to fraction form
    56,917.76/85,366.96 = 20,886.80/x
  3. Step 3: Cross multiply
    56,917.76x = 85,366.96 × 20,886.80
  4. Step 4: Simplify right side
    56,917.76x = 1,783,042,620.13
  5. Step 5: Solve for x
    x = 1,783,042,620.13/56,917.76
  6. Step 6: Final answer
    x = 31,326.65

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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.