Home / 80,240.23-120,275.01-30,299.08

Finding the Fourth Proportional to 80,240.23, 120,275.01 and 30,299.08

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Solution

The fourth proportional to 80,240.23, 120,275.01 and 30,299.08 is: 45,416.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,240.23 : 120,275.01 = 30,299.08 : x
  2. Step 2: Convert to fraction form
    80,240.23/120,275.01 = 30,299.08/x
  3. Step 3: Cross multiply
    80,240.23x = 120,275.01 × 30,299.08
  4. Step 4: Simplify right side
    80,240.23x = 3,644,222,149.99
  5. Step 5: Solve for x
    x = 3,644,222,149.99/80,240.23
  6. Step 6: Final answer
    x = 45,416.40

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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.