Home / 80,202.34-120,285.06-30,287.62

Finding the Fourth Proportional to 80,202.34, 120,285.06 and 30,287.62

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Solution

The fourth proportional to 80,202.34, 120,285.06 and 30,287.62 is: 45,424.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,202.34 : 120,285.06 = 30,287.62 : x
  2. Step 2: Convert to fraction form
    80,202.34/120,285.06 = 30,287.62/x
  3. Step 3: Cross multiply
    80,202.34x = 120,285.06 × 30,287.62
  4. Step 4: Simplify right side
    80,202.34x = 3,643,148,188.96
  5. Step 5: Solve for x
    x = 3,643,148,188.96/80,202.34
  6. Step 6: Final answer
    x = 45,424.46

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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.