Home / 86,449.44-129,400.56-56,796.96

Finding the Fourth Proportional to 86,449.44, 129,400.56 and 56,796.96

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Solution

The fourth proportional to 86,449.44, 129,400.56 and 56,796.96 is: 85,015.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,449.44 : 129,400.56 = 56,796.96 : x
  2. Step 2: Convert to fraction form
    86,449.44/129,400.56 = 56,796.96/x
  3. Step 3: Cross multiply
    86,449.44x = 129,400.56 × 56,796.96
  4. Step 4: Simplify right side
    86,449.44x = 7,349,558,430.30
  5. Step 5: Solve for x
    x = 7,349,558,430.30/86,449.44
  6. Step 6: Final answer
    x = 85,015.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.