Home / 45,686.88-68,529.60-14,521.68

Finding the Fourth Proportional to 45,686.88, 68,529.60 and 14,521.68

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Solution

The fourth proportional to 45,686.88, 68,529.60 and 14,521.68 is: 21,782.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,686.88 : 68,529.60 = 14,521.68 : x
  2. Step 2: Convert to fraction form
    45,686.88/68,529.60 = 14,521.68/x
  3. Step 3: Cross multiply
    45,686.88x = 68,529.60 × 14,521.68
  4. Step 4: Simplify right side
    45,686.88x = 995,164,921.73
  5. Step 5: Solve for x
    x = 995,164,921.73/45,686.88
  6. Step 6: Final answer
    x = 21,782.29

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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.