Home / 56,910.96-78,536.66-31,417.31

Finding the Fourth Proportional to 56,910.96, 78,536.66 and 31,417.31

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Solution

The fourth proportional to 56,910.96, 78,536.66 and 31,417.31 is: 43,355.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,910.96 : 78,536.66 = 31,417.31 : x
  2. Step 2: Convert to fraction form
    56,910.96/78,536.66 = 31,417.31/x
  3. Step 3: Cross multiply
    56,910.96x = 78,536.66 × 31,417.31
  4. Step 4: Simplify right side
    56,910.96x = 2,467,410,043.81
  5. Step 5: Solve for x
    x = 2,467,410,043.81/56,910.96
  6. Step 6: Final answer
    x = 43,355.62

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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.