Home / 51,127.34-76,689.86-13,687.39

Finding the Fourth Proportional to 51,127.34, 76,689.86 and 13,687.39

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Solution

The fourth proportional to 51,127.34, 76,689.86 and 13,687.39 is: 20,530.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,127.34 : 76,689.86 = 13,687.39 : x
  2. Step 2: Convert to fraction form
    51,127.34/76,689.86 = 13,687.39/x
  3. Step 3: Cross multiply
    51,127.34x = 76,689.86 × 13,687.39
  4. Step 4: Simplify right side
    51,127.34x = 1,049,683,865.36
  5. Step 5: Solve for x
    x = 1,049,683,865.36/51,127.34
  6. Step 6: Final answer
    x = 20,530.77

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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.