Home / 56,825.64-78,420.42-31,672.44

Finding the Fourth Proportional to 56,825.64, 78,420.42 and 31,672.44

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Solution

The fourth proportional to 56,825.64, 78,420.42 and 31,672.44 is: 43,708.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,825.64 : 78,420.42 = 31,672.44 : x
  2. Step 2: Convert to fraction form
    56,825.64/78,420.42 = 31,672.44/x
  3. Step 3: Cross multiply
    56,825.64x = 78,420.42 × 31,672.44
  4. Step 4: Simplify right side
    56,825.64x = 2,483,766,047.22
  5. Step 5: Solve for x
    x = 2,483,766,047.22/56,825.64
  6. Step 6: Final answer
    x = 43,708.55

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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.