Home / 51,126.63-76,689.48-13,175.80

Finding the Fourth Proportional to 51,126.63, 76,689.48 and 13,175.80

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Solution

The fourth proportional to 51,126.63, 76,689.48 and 13,175.80 is: 19,763.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,126.63 : 76,689.48 = 13,175.80 : x
  2. Step 2: Convert to fraction form
    51,126.63/76,689.48 = 13,175.80/x
  3. Step 3: Cross multiply
    51,126.63x = 76,689.48 × 13,175.80
  4. Step 4: Simplify right side
    51,126.63x = 1,010,445,108.27
  5. Step 5: Solve for x
    x = 1,010,445,108.27/51,126.63
  6. Step 6: Final answer
    x = 19,763.58

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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.