Home / 53,983.44-81,011.32-18,923.11

Finding the Fourth Proportional to 53,983.44, 81,011.32 and 18,923.11

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Solution

The fourth proportional to 53,983.44, 81,011.32 and 18,923.11 is: 28,397.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,983.44 : 81,011.32 = 18,923.11 : x
  2. Step 2: Convert to fraction form
    53,983.44/81,011.32 = 18,923.11/x
  3. Step 3: Cross multiply
    53,983.44x = 81,011.32 × 18,923.11
  4. Step 4: Simplify right side
    53,983.44x = 1,532,985,869.77
  5. Step 5: Solve for x
    x = 1,532,985,869.77/53,983.44
  6. Step 6: Final answer
    x = 28,397.34

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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.