Home / 76,278.08-114,407.37-20,122.43

Finding the Fourth Proportional to 76,278.08, 114,407.37 and 20,122.43

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Solution

The fourth proportional to 76,278.08, 114,407.37 and 20,122.43 is: 30,181.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,278.08 : 114,407.37 = 20,122.43 : x
  2. Step 2: Convert to fraction form
    76,278.08/114,407.37 = 20,122.43/x
  3. Step 3: Cross multiply
    76,278.08x = 114,407.37 × 20,122.43
  4. Step 4: Simplify right side
    76,278.08x = 2,302,153,722.27
  5. Step 5: Solve for x
    x = 2,302,153,722.27/76,278.08
  6. Step 6: Final answer
    x = 30,181.06

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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.