Home / 81,458.30-122,296.80-52,006.70

Finding the Fourth Proportional to 81,458.30, 122,296.80 and 52,006.70

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Solution

The fourth proportional to 81,458.30, 122,296.80 and 52,006.70 is: 78,079.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,458.30 : 122,296.80 = 52,006.70 : x
  2. Step 2: Convert to fraction form
    81,458.30/122,296.80 = 52,006.70/x
  3. Step 3: Cross multiply
    81,458.30x = 122,296.80 × 52,006.70
  4. Step 4: Simplify right side
    81,458.30x = 6,360,252,988.56
  5. Step 5: Solve for x
    x = 6,360,252,988.56/81,458.30
  6. Step 6: Final answer
    x = 78,079.86

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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.