Home / 51,143.64-76,714.86-13,702.56

Finding the Fourth Proportional to 51,143.64, 76,714.86 and 13,702.56

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Solution

The fourth proportional to 51,143.64, 76,714.86 and 13,702.56 is: 20,553.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,143.64 : 76,714.86 = 13,702.56 : x
  2. Step 2: Convert to fraction form
    51,143.64/76,714.86 = 13,702.56/x
  3. Step 3: Cross multiply
    51,143.64x = 76,714.86 × 13,702.56
  4. Step 4: Simplify right side
    51,143.64x = 1,051,189,972.04
  5. Step 5: Solve for x
    x = 1,051,189,972.04/51,143.64
  6. Step 6: Final answer
    x = 20,553.68

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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.