Home / 80,430.88-120,523.24-42,996.26

Finding the Fourth Proportional to 80,430.88, 120,523.24 and 42,996.26

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Solution

The fourth proportional to 80,430.88, 120,523.24 and 42,996.26 is: 64,428.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,430.88 : 120,523.24 = 42,996.26 : x
  2. Step 2: Convert to fraction form
    80,430.88/120,523.24 = 42,996.26/x
  3. Step 3: Cross multiply
    80,430.88x = 120,523.24 × 42,996.26
  4. Step 4: Simplify right side
    80,430.88x = 5,182,048,563.08
  5. Step 5: Solve for x
    x = 5,182,048,563.08/80,430.88
  6. Step 6: Final answer
    x = 64,428.59

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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.