Home / 54,516.78-81,775.14-14,535.78

Finding the Fourth Proportional to 54,516.78, 81,775.14 and 14,535.78

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Solution

The fourth proportional to 54,516.78, 81,775.14 and 14,535.78 is: 21,803.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,516.78 : 81,775.14 = 14,535.78 : x
  2. Step 2: Convert to fraction form
    54,516.78/81,775.14 = 14,535.78/x
  3. Step 3: Cross multiply
    54,516.78x = 81,775.14 × 14,535.78
  4. Step 4: Simplify right side
    54,516.78x = 1,188,665,444.51
  5. Step 5: Solve for x
    x = 1,188,665,444.51/54,516.78
  6. Step 6: Final answer
    x = 21,803.66

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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.