Home / 56,675.44-85,012.60-21,135.53

Finding the Fourth Proportional to 56,675.44, 85,012.60 and 21,135.53

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Solution

The fourth proportional to 56,675.44, 85,012.60 and 21,135.53 is: 31,703.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,675.44 : 85,012.60 = 21,135.53 : x
  2. Step 2: Convert to fraction form
    56,675.44/85,012.60 = 21,135.53/x
  3. Step 3: Cross multiply
    56,675.44x = 85,012.60 × 21,135.53
  4. Step 4: Simplify right side
    56,675.44x = 1,796,785,879.78
  5. Step 5: Solve for x
    x = 1,796,785,879.78/56,675.44
  6. Step 6: Final answer
    x = 31,703.08

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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.