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Finding the Fourth Proportional to 80,069.99, 120,064.12 and 26,742.76

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Solution

The fourth proportional to 80,069.99, 120,064.12 and 26,742.76 is: 40,100.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,069.99 : 120,064.12 = 26,742.76 : x
  2. Step 2: Convert to fraction form
    80,069.99/120,064.12 = 26,742.76/x
  3. Step 3: Cross multiply
    80,069.99x = 120,064.12 × 26,742.76
  4. Step 4: Simplify right side
    80,069.99x = 3,210,845,729.18
  5. Step 5: Solve for x
    x = 3,210,845,729.18/80,069.99
  6. Step 6: Final answer
    x = 40,100.49

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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.