Home / 56,911.97-78,536.46-31,417.79

Finding the Fourth Proportional to 56,911.97, 78,536.46 and 31,417.79

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Solution

The fourth proportional to 56,911.97, 78,536.46 and 31,417.79 is: 43,355.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,911.97 : 78,536.46 = 31,417.79 : x
  2. Step 2: Convert to fraction form
    56,911.97/78,536.46 = 31,417.79/x
  3. Step 3: Cross multiply
    56,911.97x = 78,536.46 × 31,417.79
  4. Step 4: Simplify right side
    56,911.97x = 2,467,442,007.62
  5. Step 5: Solve for x
    x = 2,467,442,007.62/56,911.97
  6. Step 6: Final answer
    x = 43,355.41

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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.