Home / 76,279.56-114,427.03-20,123.55

Finding the Fourth Proportional to 76,279.56, 114,427.03 and 20,123.55

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Solution

The fourth proportional to 76,279.56, 114,427.03 and 20,123.55 is: 30,187.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,279.56 : 114,427.03 = 20,123.55 : x
  2. Step 2: Convert to fraction form
    76,279.56/114,427.03 = 20,123.55/x
  3. Step 3: Cross multiply
    76,279.56x = 114,427.03 × 20,123.55
  4. Step 4: Simplify right side
    76,279.56x = 2,302,677,958.94
  5. Step 5: Solve for x
    x = 2,302,677,958.94/76,279.56
  6. Step 6: Final answer
    x = 30,187.35

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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.