Home / 56,768.14-78,342.44-31,617.64

Finding the Fourth Proportional to 56,768.14, 78,342.44 and 31,617.64

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Solution

The fourth proportional to 56,768.14, 78,342.44 and 31,617.64 is: 43,633.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,768.14 : 78,342.44 = 31,617.64 : x
  2. Step 2: Convert to fraction form
    56,768.14/78,342.44 = 31,617.64/x
  3. Step 3: Cross multiply
    56,768.14x = 78,342.44 × 31,617.64
  4. Step 4: Simplify right side
    56,768.14x = 2,477,003,064.64
  5. Step 5: Solve for x
    x = 2,477,003,064.64/56,768.14
  6. Step 6: Final answer
    x = 43,633.68

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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.