Home / 82,933.20-114,472.98-78,701.76

Finding the Fourth Proportional to 82,933.20, 114,472.98 and 78,701.76

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Solution

The fourth proportional to 82,933.20, 114,472.98 and 78,701.76 is: 108,632.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,933.20 : 114,472.98 = 78,701.76 : x
  2. Step 2: Convert to fraction form
    82,933.20/114,472.98 = 78,701.76/x
  3. Step 3: Cross multiply
    82,933.20x = 114,472.98 × 78,701.76
  4. Step 4: Simplify right side
    82,933.20x = 9,009,224,998.44
  5. Step 5: Solve for x
    x = 9,009,224,998.44/82,933.20
  6. Step 6: Final answer
    x = 108,632.31

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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.