Home / 51,388.10-76,933.61-31,606.68

Finding the Fourth Proportional to 51,388.10, 76,933.61 and 31,606.68

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Solution

The fourth proportional to 51,388.10, 76,933.61 and 31,606.68 is: 47,318.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,388.10 : 76,933.61 = 31,606.68 : x
  2. Step 2: Convert to fraction form
    51,388.10/76,933.61 = 31,606.68/x
  3. Step 3: Cross multiply
    51,388.10x = 76,933.61 × 31,606.68
  4. Step 4: Simplify right side
    51,388.10x = 2,431,615,992.51
  5. Step 5: Solve for x
    x = 2,431,615,992.51/51,388.10
  6. Step 6: Final answer
    x = 47,318.66

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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.