Home / 45,981.84-68,836.68-28,395.12

Finding the Fourth Proportional to 45,981.84, 68,836.68 and 28,395.12

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Solution

The fourth proportional to 45,981.84, 68,836.68 and 28,395.12 is: 42,508.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,981.84 : 68,836.68 = 28,395.12 : x
  2. Step 2: Convert to fraction form
    45,981.84/68,836.68 = 28,395.12/x
  3. Step 3: Cross multiply
    45,981.84x = 68,836.68 × 28,395.12
  4. Step 4: Simplify right side
    45,981.84x = 1,954,625,789.00
  5. Step 5: Solve for x
    x = 1,954,625,789.00/45,981.84
  6. Step 6: Final answer
    x = 42,508.65

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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.