Home / 54,938.45-82,407.68-19,869.91

Finding the Fourth Proportional to 54,938.45, 82,407.68 and 19,869.91

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Solution

The fourth proportional to 54,938.45, 82,407.68 and 19,869.91 is: 29,804.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,938.45 : 82,407.68 = 19,869.91 : x
  2. Step 2: Convert to fraction form
    54,938.45/82,407.68 = 19,869.91/x
  3. Step 3: Cross multiply
    54,938.45x = 82,407.68 × 19,869.91
  4. Step 4: Simplify right side
    54,938.45x = 1,637,433,184.91
  5. Step 5: Solve for x
    x = 1,637,433,184.91/54,938.45
  6. Step 6: Final answer
    x = 29,804.87

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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.