Home / 53,689.62-80,534.34-13,708.59

Finding the Fourth Proportional to 53,689.62, 80,534.34 and 13,708.59

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Solution

The fourth proportional to 53,689.62, 80,534.34 and 13,708.59 is: 20,562.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,689.62 : 80,534.34 = 13,708.59 : x
  2. Step 2: Convert to fraction form
    53,689.62/80,534.34 = 13,708.59/x
  3. Step 3: Cross multiply
    53,689.62x = 80,534.34 × 13,708.59
  4. Step 4: Simplify right side
    53,689.62x = 1,104,012,247.98
  5. Step 5: Solve for x
    x = 1,104,012,247.98/53,689.62
  6. Step 6: Final answer
    x = 20,562.86

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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.