Home / 50,890.55-70,230.09-28,228.81

Finding the Fourth Proportional to 50,890.55, 70,230.09 and 28,228.81

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Solution

The fourth proportional to 50,890.55, 70,230.09 and 28,228.81 is: 38,956.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,890.55 : 70,230.09 = 28,228.81 : x
  2. Step 2: Convert to fraction form
    50,890.55/70,230.09 = 28,228.81/x
  3. Step 3: Cross multiply
    50,890.55x = 70,230.09 × 28,228.81
  4. Step 4: Simplify right side
    50,890.55x = 1,982,511,691.32
  5. Step 5: Solve for x
    x = 1,982,511,691.32/50,890.55
  6. Step 6: Final answer
    x = 38,956.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.