Home / 45,479.07-68,228.60-13,891.77

Finding the Fourth Proportional to 45,479.07, 68,228.60 and 13,891.77

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Solution

The fourth proportional to 45,479.07, 68,228.60 and 13,891.77 is: 20,840.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,479.07 : 68,228.60 = 13,891.77 : x
  2. Step 2: Convert to fraction form
    45,479.07/68,228.60 = 13,891.77/x
  3. Step 3: Cross multiply
    45,479.07x = 68,228.60 × 13,891.77
  4. Step 4: Simplify right side
    45,479.07x = 947,815,949.16
  5. Step 5: Solve for x
    x = 947,815,949.16/45,479.07
  6. Step 6: Final answer
    x = 20,840.71

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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.