Home / 81,733.11-122,596.34-28,437.29

Finding the Fourth Proportional to 81,733.11, 122,596.34 and 28,437.29

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Solution

The fourth proportional to 81,733.11, 122,596.34 and 28,437.29 is: 42,654.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,733.11 : 122,596.34 = 28,437.29 : x
  2. Step 2: Convert to fraction form
    81,733.11/122,596.34 = 28,437.29/x
  3. Step 3: Cross multiply
    81,733.11x = 122,596.34 × 28,437.29
  4. Step 4: Simplify right side
    81,733.11x = 3,486,306,918.35
  5. Step 5: Solve for x
    x = 3,486,306,918.35/81,733.11
  6. Step 6: Final answer
    x = 42,654.77

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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.