Home / 56,808.96-78,396.48-31,659.36

Finding the Fourth Proportional to 56,808.96, 78,396.48 and 31,659.36

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Solution

The fourth proportional to 56,808.96, 78,396.48 and 31,659.36 is: 43,689.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,808.96 : 78,396.48 = 31,659.36 : x
  2. Step 2: Convert to fraction form
    56,808.96/78,396.48 = 31,659.36/x
  3. Step 3: Cross multiply
    56,808.96x = 78,396.48 × 31,659.36
  4. Step 4: Simplify right side
    56,808.96x = 2,481,982,383.05
  5. Step 5: Solve for x
    x = 2,481,982,383.05/56,808.96
  6. Step 6: Final answer
    x = 43,689.98

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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.