Home / 81,830.56-112,924.20-53,535.64

Finding the Fourth Proportional to 81,830.56, 112,924.20 and 53,535.64

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Solution

The fourth proportional to 81,830.56, 112,924.20 and 53,535.64 is: 73,877.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,830.56 : 112,924.20 = 53,535.64 : x
  2. Step 2: Convert to fraction form
    81,830.56/112,924.20 = 53,535.64/x
  3. Step 3: Cross multiply
    81,830.56x = 112,924.20 × 53,535.64
  4. Step 4: Simplify right side
    81,830.56x = 6,045,469,318.49
  5. Step 5: Solve for x
    x = 6,045,469,318.49/81,830.56
  6. Step 6: Final answer
    x = 73,877.89

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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.