Home / 45,483.11-68,231.65-13,885.82

Finding the Fourth Proportional to 45,483.11, 68,231.65 and 13,885.82

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Solution

The fourth proportional to 45,483.11, 68,231.65 and 13,885.82 is: 20,830.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,483.11 : 68,231.65 = 13,885.82 : x
  2. Step 2: Convert to fraction form
    45,483.11/68,231.65 = 13,885.82/x
  3. Step 3: Cross multiply
    45,483.11x = 68,231.65 × 13,885.82
  4. Step 4: Simplify right side
    45,483.11x = 947,452,410.20
  5. Step 5: Solve for x
    x = 947,452,410.20/45,483.11
  6. Step 6: Final answer
    x = 20,830.86

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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.