Home / 56,927.80-85,359.70-21,868.60

Finding the Fourth Proportional to 56,927.80, 85,359.70 and 21,868.60

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Solution

The fourth proportional to 56,927.80, 85,359.70 and 21,868.60 is: 32,790.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,927.80 : 85,359.70 = 21,868.60 : x
  2. Step 2: Convert to fraction form
    56,927.80/85,359.70 = 21,868.60/x
  3. Step 3: Cross multiply
    56,927.80x = 85,359.70 × 21,868.60
  4. Step 4: Simplify right side
    56,927.80x = 1,866,697,135.42
  5. Step 5: Solve for x
    x = 1,866,697,135.42/56,927.80
  6. Step 6: Final answer
    x = 32,790.61

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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.