Home / 43,680.16-65,508.88-12,508.12

Finding the Fourth Proportional to 43,680.16, 65,508.88 and 12,508.12

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Solution

The fourth proportional to 43,680.16, 65,508.88 and 12,508.12 is: 18,758.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,680.16 : 65,508.88 = 12,508.12 : x
  2. Step 2: Convert to fraction form
    43,680.16/65,508.88 = 12,508.12/x
  3. Step 3: Cross multiply
    43,680.16x = 65,508.88 × 12,508.12
  4. Step 4: Simplify right side
    43,680.16x = 819,392,932.11
  5. Step 5: Solve for x
    x = 819,392,932.11/43,680.16
  6. Step 6: Final answer
    x = 18,758.93

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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.