Home / 45,815.66-68,714.27-12,539.09

Finding the Fourth Proportional to 45,815.66, 68,714.27 and 12,539.09

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Solution

The fourth proportional to 45,815.66, 68,714.27 and 12,539.09 is: 18,806.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,815.66 : 68,714.27 = 12,539.09 : x
  2. Step 2: Convert to fraction form
    45,815.66/68,714.27 = 12,539.09/x
  3. Step 3: Cross multiply
    45,815.66x = 68,714.27 × 12,539.09
  4. Step 4: Simplify right side
    45,815.66x = 861,614,466.48
  5. Step 5: Solve for x
    x = 861,614,466.48/45,815.66
  6. Step 6: Final answer
    x = 18,806.11

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1.5x scale

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.