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Finding the Fourth Proportional to 80,210.98, 120,434.75 and 44,741.60

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Solution

The fourth proportional to 80,210.98, 120,434.75 and 44,741.60 is: 67,178.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,210.98 : 120,434.75 = 44,741.60 : x
  2. Step 2: Convert to fraction form
    80,210.98/120,434.75 = 44,741.60/x
  3. Step 3: Cross multiply
    80,210.98x = 120,434.75 × 44,741.60
  4. Step 4: Simplify right side
    80,210.98x = 5,388,443,204.13
  5. Step 5: Solve for x
    x = 5,388,443,204.13/80,210.98
  6. Step 6: Final answer
    x = 67,178.37

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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.