Home / 54,494.63-81,708.51-21,175.81

Finding the Fourth Proportional to 54,494.63, 81,708.51 and 21,175.81

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Solution

The fourth proportional to 54,494.63, 81,708.51 and 21,175.81 is: 31,750.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,494.63 : 81,708.51 = 21,175.81 : x
  2. Step 2: Convert to fraction form
    54,494.63/81,708.51 = 21,175.81/x
  3. Step 3: Cross multiply
    54,494.63x = 81,708.51 × 21,175.81
  4. Step 4: Simplify right side
    54,494.63x = 1,730,243,678.87
  5. Step 5: Solve for x
    x = 1,730,243,678.87/54,494.63
  6. Step 6: Final answer
    x = 31,750.72

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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.