Home / 102,379.75-141,295.52-57,061.87

Finding the Fourth Proportional to 102,379.75, 141,295.52 and 57,061.87

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Solution

The fourth proportional to 102,379.75, 141,295.52 and 57,061.87 is: 78,751.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,379.75 : 141,295.52 = 57,061.87 : x
  2. Step 2: Convert to fraction form
    102,379.75/141,295.52 = 57,061.87/x
  3. Step 3: Cross multiply
    102,379.75x = 141,295.52 × 57,061.87
  4. Step 4: Simplify right side
    102,379.75x = 8,062,586,383.24
  5. Step 5: Solve for x
    x = 8,062,586,383.24/102,379.75
  6. Step 6: Final answer
    x = 78,751.77

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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.