Home / 55,687.64-76,853.00-31,813.79

Finding the Fourth Proportional to 55,687.64, 76,853.00 and 31,813.79

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Solution

The fourth proportional to 55,687.64, 76,853.00 and 31,813.79 is: 43,905.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,687.64 : 76,853.00 = 31,813.79 : x
  2. Step 2: Convert to fraction form
    55,687.64/76,853.00 = 31,813.79/x
  3. Step 3: Cross multiply
    55,687.64x = 76,853.00 × 31,813.79
  4. Step 4: Simplify right side
    55,687.64x = 2,444,984,898.14
  5. Step 5: Solve for x
    x = 2,444,984,898.14/55,687.64
  6. Step 6: Final answer
    x = 43,905.35

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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.