Home / 56,933.25-78,569.10-31,782.75

Finding the Fourth Proportional to 56,933.25, 78,569.10 and 31,782.75

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Solution

The fourth proportional to 56,933.25, 78,569.10 and 31,782.75 is: 43,860.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,933.25 : 78,569.10 = 31,782.75 : x
  2. Step 2: Convert to fraction form
    56,933.25/78,569.10 = 31,782.75/x
  3. Step 3: Cross multiply
    56,933.25x = 78,569.10 × 31,782.75
  4. Step 4: Simplify right side
    56,933.25x = 2,497,142,063.03
  5. Step 5: Solve for x
    x = 2,497,142,063.03/56,933.25
  6. Step 6: Final answer
    x = 43,860.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.