Home / 51,180.40-76,781.40-16,123.60

Finding the Fourth Proportional to 51,180.40, 76,781.40 and 16,123.60

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Solution

The fourth proportional to 51,180.40, 76,781.40 and 16,123.60 is: 24,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,180.40 : 76,781.40 = 16,123.60 : x
  2. Step 2: Convert to fraction form
    51,180.40/76,781.40 = 16,123.60/x
  3. Step 3: Cross multiply
    51,180.40x = 76,781.40 × 16,123.60
  4. Step 4: Simplify right side
    51,180.40x = 1,237,992,581.04
  5. Step 5: Solve for x
    x = 1,237,992,581.04/51,180.40
  6. Step 6: Final answer
    x = 24,188.80

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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.