Home / 56,431.68-84,627.72-16,978.56

Finding the Fourth Proportional to 56,431.68, 84,627.72 and 16,978.56

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Solution

The fourth proportional to 56,431.68, 84,627.72 and 16,978.56 is: 25,461.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,431.68 : 84,627.72 = 16,978.56 : x
  2. Step 2: Convert to fraction form
    56,431.68/84,627.72 = 16,978.56/x
  3. Step 3: Cross multiply
    56,431.68x = 84,627.72 × 16,978.56
  4. Step 4: Simplify right side
    56,431.68x = 1,436,856,821.68
  5. Step 5: Solve for x
    x = 1,436,856,821.68/56,431.68
  6. Step 6: Final answer
    x = 25,461.88

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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.