Home / 102,489.52-141,435.50-57,777.52

Finding the Fourth Proportional to 102,489.52, 141,435.50 and 57,777.52

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Solution

The fourth proportional to 102,489.52, 141,435.50 and 57,777.52 is: 79,732.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,489.52 : 141,435.50 = 57,777.52 : x
  2. Step 2: Convert to fraction form
    102,489.52/141,435.50 = 57,777.52/x
  3. Step 3: Cross multiply
    102,489.52x = 141,435.50 × 57,777.52
  4. Step 4: Simplify right side
    102,489.52x = 8,171,792,429.96
  5. Step 5: Solve for x
    x = 8,171,792,429.96/102,489.52
  6. Step 6: Final answer
    x = 79,732.96

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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.