Home / 56,121.30-84,279.15-54,371.70

Finding the Fourth Proportional to 56,121.30, 84,279.15 and 54,371.70

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Solution

The fourth proportional to 56,121.30, 84,279.15 and 54,371.70 is: 81,651.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,121.30 : 84,279.15 = 54,371.70 : x
  2. Step 2: Convert to fraction form
    56,121.30/84,279.15 = 54,371.70/x
  3. Step 3: Cross multiply
    56,121.30x = 84,279.15 × 54,371.70
  4. Step 4: Simplify right side
    56,121.30x = 4,582,400,660.06
  5. Step 5: Solve for x
    x = 4,582,400,660.06/56,121.30
  6. Step 6: Final answer
    x = 81,651.72

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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.