Home / 56,918.25-78,548.42-31,424.54

Finding the Fourth Proportional to 56,918.25, 78,548.42 and 31,424.54

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Solution

The fourth proportional to 56,918.25, 78,548.42 and 31,424.54 is: 43,366.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,918.25 : 78,548.42 = 31,424.54 : x
  2. Step 2: Convert to fraction form
    56,918.25/78,548.42 = 31,424.54/x
  3. Step 3: Cross multiply
    56,918.25x = 78,548.42 × 31,424.54
  4. Step 4: Simplify right side
    56,918.25x = 2,468,347,652.05
  5. Step 5: Solve for x
    x = 2,468,347,652.05/56,918.25
  6. Step 6: Final answer
    x = 43,366.54

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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.