Home / 80,254.62-120,316.23-30,306.36

Finding the Fourth Proportional to 80,254.62, 120,316.23 and 30,306.36

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Solution

The fourth proportional to 80,254.62, 120,316.23 and 30,306.36 is: 45,434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,254.62 : 120,316.23 = 30,306.36 : x
  2. Step 2: Convert to fraction form
    80,254.62/120,316.23 = 30,306.36/x
  3. Step 3: Cross multiply
    80,254.62x = 120,316.23 × 30,306.36
  4. Step 4: Simplify right side
    80,254.62x = 3,646,346,980.22
  5. Step 5: Solve for x
    x = 3,646,346,980.22/80,254.62
  6. Step 6: Final answer
    x = 45,434.73

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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.