Home / 45,818.80-68,738.01-14,228.20

Finding the Fourth Proportional to 45,818.80, 68,738.01 and 14,228.20

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Solution

The fourth proportional to 45,818.80, 68,738.01 and 14,228.20 is: 21,345.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,818.80 : 68,738.01 = 14,228.20 : x
  2. Step 2: Convert to fraction form
    45,818.80/68,738.01 = 14,228.20/x
  3. Step 3: Cross multiply
    45,818.80x = 68,738.01 × 14,228.20
  4. Step 4: Simplify right side
    45,818.80x = 978,018,153.88
  5. Step 5: Solve for x
    x = 978,018,153.88/45,818.80
  6. Step 6: Final answer
    x = 21,345.35

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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.