Home / 102,821.91-141,893.27-57,499.38

Finding the Fourth Proportional to 102,821.91, 141,893.27 and 57,499.38

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Solution

The fourth proportional to 102,821.91, 141,893.27 and 57,499.38 is: 79,348.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,821.91 : 141,893.27 = 57,499.38 : x
  2. Step 2: Convert to fraction form
    102,821.91/141,893.27 = 57,499.38/x
  3. Step 3: Cross multiply
    102,821.91x = 141,893.27 × 57,499.38
  4. Step 4: Simplify right side
    102,821.91x = 8,158,774,763.68
  5. Step 5: Solve for x
    x = 8,158,774,763.68/102,821.91
  6. Step 6: Final answer
    x = 79,348.60

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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.