Home / 56,941.81-78,579.75-31,791.31

Finding the Fourth Proportional to 56,941.81, 78,579.75 and 31,791.31

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Solution

The fourth proportional to 56,941.81, 78,579.75 and 31,791.31 is: 43,872.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,941.81 : 78,579.75 = 31,791.31 : x
  2. Step 2: Convert to fraction form
    56,941.81/78,579.75 = 31,791.31/x
  3. Step 3: Cross multiply
    56,941.81x = 78,579.75 × 31,791.31
  4. Step 4: Simplify right side
    56,941.81x = 2,498,153,191.97
  5. Step 5: Solve for x
    x = 2,498,153,191.97/56,941.81
  6. Step 6: Final answer
    x = 43,872.04

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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.