Home / 56,708.96-78,257.73-31,214.77

Finding the Fourth Proportional to 56,708.96, 78,257.73 and 31,214.77

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Solution

The fourth proportional to 56,708.96, 78,257.73 and 31,214.77 is: 43,076.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,708.96 : 78,257.73 = 31,214.77 : x
  2. Step 2: Convert to fraction form
    56,708.96/78,257.73 = 31,214.77/x
  3. Step 3: Cross multiply
    56,708.96x = 78,257.73 × 31,214.77
  4. Step 4: Simplify right side
    56,708.96x = 2,442,796,788.50
  5. Step 5: Solve for x
    x = 2,442,796,788.50/56,708.96
  6. Step 6: Final answer
    x = 43,076.03

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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.