Home / 51,177.60-76,766.40-50,140.80

Finding the Fourth Proportional to 51,177.60, 76,766.40 and 50,140.80

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Solution

The fourth proportional to 51,177.60, 76,766.40 and 50,140.80 is: 75,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,177.60 : 76,766.40 = 50,140.80 : x
  2. Step 2: Convert to fraction form
    51,177.60/76,766.40 = 50,140.80/x
  3. Step 3: Cross multiply
    51,177.60x = 76,766.40 × 50,140.80
  4. Step 4: Simplify right side
    51,177.60x = 3,849,128,709.12
  5. Step 5: Solve for x
    x = 3,849,128,709.12/51,177.60
  6. Step 6: Final answer
    x = 75,211.20

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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.