Home / 45,418.36-68,139.06-14,253.88

Finding the Fourth Proportional to 45,418.36, 68,139.06 and 14,253.88

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Solution

The fourth proportional to 45,418.36, 68,139.06 and 14,253.88 is: 21,384.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,418.36 : 68,139.06 = 14,253.88 : x
  2. Step 2: Convert to fraction form
    45,418.36/68,139.06 = 14,253.88/x
  3. Step 3: Cross multiply
    45,418.36x = 68,139.06 × 14,253.88
  4. Step 4: Simplify right side
    45,418.36x = 971,245,984.55
  5. Step 5: Solve for x
    x = 971,245,984.55/45,418.36
  6. Step 6: Final answer
    x = 21,384.44

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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.