Home / 80,283.56-120,429.18-38,765.48

Finding the Fourth Proportional to 80,283.56, 120,429.18 and 38,765.48

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Solution

The fourth proportional to 80,283.56, 120,429.18 and 38,765.48 is: 58,150.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,283.56 : 120,429.18 = 38,765.48 : x
  2. Step 2: Convert to fraction form
    80,283.56/120,429.18 = 38,765.48/x
  3. Step 3: Cross multiply
    80,283.56x = 120,429.18 × 38,765.48
  4. Step 4: Simplify right side
    80,283.56x = 4,668,494,968.71
  5. Step 5: Solve for x
    x = 4,668,494,968.71/80,283.56
  6. Step 6: Final answer
    x = 58,150.07

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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.