Home / 45,488.21-68,222.91-12,200.36

Finding the Fourth Proportional to 45,488.21, 68,222.91 and 12,200.36

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Solution

The fourth proportional to 45,488.21, 68,222.91 and 12,200.36 is: 18,298.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,488.21 : 68,222.91 = 12,200.36 : x
  2. Step 2: Convert to fraction form
    45,488.21/68,222.91 = 12,200.36/x
  3. Step 3: Cross multiply
    45,488.21x = 68,222.91 × 12,200.36
  4. Step 4: Simplify right side
    45,488.21x = 832,344,062.25
  5. Step 5: Solve for x
    x = 832,344,062.25/45,488.21
  6. Step 6: Final answer
    x = 18,298.02

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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.