Home / 81,446.42-122,188.77-25,283.66

Finding the Fourth Proportional to 81,446.42, 122,188.77 and 25,283.66

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Solution

The fourth proportional to 81,446.42, 122,188.77 and 25,283.66 is: 37,931.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,446.42 : 122,188.77 = 25,283.66 : x
  2. Step 2: Convert to fraction form
    81,446.42/122,188.77 = 25,283.66/x
  3. Step 3: Cross multiply
    81,446.42x = 122,188.77 × 25,283.66
  4. Step 4: Simplify right side
    81,446.42x = 3,089,378,705.55
  5. Step 5: Solve for x
    x = 3,089,378,705.55/81,446.42
  6. Step 6: Final answer
    x = 37,931.42

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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.