Home / 56,914.25-78,542.93-31,420.56

Finding the Fourth Proportional to 56,914.25, 78,542.93 and 31,420.56

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Solution

The fourth proportional to 56,914.25, 78,542.93 and 31,420.56 is: 43,361.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,914.25 : 78,542.93 = 31,420.56 : x
  2. Step 2: Convert to fraction form
    56,914.25/78,542.93 = 31,420.56/x
  3. Step 3: Cross multiply
    56,914.25x = 78,542.93 × 31,420.56
  4. Step 4: Simplify right side
    56,914.25x = 2,467,862,844.64
  5. Step 5: Solve for x
    x = 2,467,862,844.64/56,914.25
  6. Step 6: Final answer
    x = 43,361.07

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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.