Home / 77,956.56-116,732.60-54,231.12

Finding the Fourth Proportional to 77,956.56, 116,732.60 and 54,231.12

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Solution

The fourth proportional to 77,956.56, 116,732.60 and 54,231.12 is: 81,205.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,956.56 : 116,732.60 = 54,231.12 : x
  2. Step 2: Convert to fraction form
    77,956.56/116,732.60 = 54,231.12/x
  3. Step 3: Cross multiply
    77,956.56x = 116,732.60 × 54,231.12
  4. Step 4: Simplify right side
    77,956.56x = 6,330,539,638.51
  5. Step 5: Solve for x
    x = 6,330,539,638.51/77,956.56
  6. Step 6: Final answer
    x = 81,205.99

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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.