Home / 56,765.13-78,334.92-31,273.89

Finding the Fourth Proportional to 56,765.13, 78,334.92 and 31,273.89

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Solution

The fourth proportional to 56,765.13, 78,334.92 and 31,273.89 is: 43,157.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,765.13 : 78,334.92 = 31,273.89 : x
  2. Step 2: Convert to fraction form
    56,765.13/78,334.92 = 31,273.89/x
  3. Step 3: Cross multiply
    56,765.13x = 78,334.92 × 31,273.89
  4. Step 4: Simplify right side
    56,765.13x = 2,449,837,671.24
  5. Step 5: Solve for x
    x = 2,449,837,671.24/56,765.13
  6. Step 6: Final answer
    x = 43,157.44

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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.