Home / 45,974.20-69,026.10-28,478.20

Finding the Fourth Proportional to 45,974.20, 69,026.10 and 28,478.20

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Solution

The fourth proportional to 45,974.20, 69,026.10 and 28,478.20 is: 42,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,974.20 : 69,026.10 = 28,478.20 : x
  2. Step 2: Convert to fraction form
    45,974.20/69,026.10 = 28,478.20/x
  3. Step 3: Cross multiply
    45,974.20x = 69,026.10 × 28,478.20
  4. Step 4: Simplify right side
    45,974.20x = 1,965,739,081.02
  5. Step 5: Solve for x
    x = 1,965,739,081.02/45,974.20
  6. Step 6: Final answer
    x = 42,757.44

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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.