Home / 55,717.30-76,871.18-31,827.06

Finding the Fourth Proportional to 55,717.30, 76,871.18 and 31,827.06

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Solution

The fourth proportional to 55,717.30, 76,871.18 and 31,827.06 is: 43,910.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,717.30 : 76,871.18 = 31,827.06 : x
  2. Step 2: Convert to fraction form
    55,717.30/76,871.18 = 31,827.06/x
  3. Step 3: Cross multiply
    55,717.30x = 76,871.18 × 31,827.06
  4. Step 4: Simplify right side
    55,717.30x = 2,446,583,558.67
  5. Step 5: Solve for x
    x = 2,446,583,558.67/55,717.30
  6. Step 6: Final answer
    x = 43,910.66

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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.