Home / 45,286.20-67,929.30-28,592.10

Finding the Fourth Proportional to 45,286.20, 67,929.30 and 28,592.10

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Solution

The fourth proportional to 45,286.20, 67,929.30 and 28,592.10 is: 42,888.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,286.20 : 67,929.30 = 28,592.10 : x
  2. Step 2: Convert to fraction form
    45,286.20/67,929.30 = 28,592.10/x
  3. Step 3: Cross multiply
    45,286.20x = 67,929.30 × 28,592.10
  4. Step 4: Simplify right side
    45,286.20x = 1,942,241,338.53
  5. Step 5: Solve for x
    x = 1,942,241,338.53/45,286.20
  6. Step 6: Final answer
    x = 42,888.15

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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.