Home / 80,457.09-120,610.90-43,042.98

Finding the Fourth Proportional to 80,457.09, 120,610.90 and 43,042.98

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Solution

The fourth proportional to 80,457.09, 120,610.90 and 43,042.98 is: 64,524.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,457.09 : 120,610.90 = 43,042.98 : x
  2. Step 2: Convert to fraction form
    80,457.09/120,610.90 = 43,042.98/x
  3. Step 3: Cross multiply
    80,457.09x = 120,610.90 × 43,042.98
  4. Step 4: Simplify right side
    80,457.09x = 5,191,452,556.48
  5. Step 5: Solve for x
    x = 5,191,452,556.48/80,457.09
  6. Step 6: Final answer
    x = 64,524.49

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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.