Home / 56,408.40-84,580.20-16,959.60

Finding the Fourth Proportional to 56,408.40, 84,580.20 and 16,959.60

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Solution

The fourth proportional to 56,408.40, 84,580.20 and 16,959.60 is: 25,429.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,408.40 : 84,580.20 = 16,959.60 : x
  2. Step 2: Convert to fraction form
    56,408.40/84,580.20 = 16,959.60/x
  3. Step 3: Cross multiply
    56,408.40x = 84,580.20 × 16,959.60
  4. Step 4: Simplify right side
    56,408.40x = 1,434,446,359.92
  5. Step 5: Solve for x
    x = 1,434,446,359.92/56,408.40
  6. Step 6: Final answer
    x = 25,429.66

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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.