Home / 51,131.35-76,691.66-13,695.29

Finding the Fourth Proportional to 51,131.35, 76,691.66 and 13,695.29

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Solution

The fourth proportional to 51,131.35, 76,691.66 and 13,695.29 is: 20,541.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,131.35 : 76,691.66 = 13,695.29 : x
  2. Step 2: Convert to fraction form
    51,131.35/76,691.66 = 13,695.29/x
  3. Step 3: Cross multiply
    51,131.35x = 76,691.66 × 13,695.29
  4. Step 4: Simplify right side
    51,131.35x = 1,050,314,072.35
  5. Step 5: Solve for x
    x = 1,050,314,072.35/51,131.35
  6. Step 6: Final answer
    x = 20,541.49

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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.