Home / 56,429.12-84,644.76-18,982.28

Finding the Fourth Proportional to 56,429.12, 84,644.76 and 18,982.28

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Solution

The fourth proportional to 56,429.12, 84,644.76 and 18,982.28 is: 28,473.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,429.12 : 84,644.76 = 18,982.28 : x
  2. Step 2: Convert to fraction form
    56,429.12/84,644.76 = 18,982.28/x
  3. Step 3: Cross multiply
    56,429.12x = 84,644.76 × 18,982.28
  4. Step 4: Simplify right side
    56,429.12x = 1,606,750,534.85
  5. Step 5: Solve for x
    x = 1,606,750,534.85/56,429.12
  6. Step 6: Final answer
    x = 28,473.78

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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.