Home / 45,284.40-67,954.23-28,621.49

Finding the Fourth Proportional to 45,284.40, 67,954.23 and 28,621.49

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Solution

The fourth proportional to 45,284.40, 67,954.23 and 28,621.49 is: 42,949.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,284.40 : 67,954.23 = 28,621.49 : x
  2. Step 2: Convert to fraction form
    45,284.40/67,954.23 = 28,621.49/x
  3. Step 3: Cross multiply
    45,284.40x = 67,954.23 × 28,621.49
  4. Step 4: Simplify right side
    45,284.40x = 1,944,950,974.63
  5. Step 5: Solve for x
    x = 1,944,950,974.63/45,284.40
  6. Step 6: Final answer
    x = 42,949.69

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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.