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Finding the Fourth Proportional to 76,809.60, 115,214.40 and 50,237.55

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Solution

The fourth proportional to 76,809.60, 115,214.40 and 50,237.55 is: 75,356.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,809.60 : 115,214.40 = 50,237.55 : x
  2. Step 2: Convert to fraction form
    76,809.60/115,214.40 = 50,237.55/x
  3. Step 3: Cross multiply
    76,809.60x = 115,214.40 × 50,237.55
  4. Step 4: Simplify right side
    76,809.60x = 5,788,089,180.72
  5. Step 5: Solve for x
    x = 5,788,089,180.72/76,809.60
  6. Step 6: Final answer
    x = 75,356.33

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1.5x scale

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.