Home / 54,584.40-81,827.10-19,515.90

Finding the Fourth Proportional to 54,584.40, 81,827.10 and 19,515.90

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Solution

The fourth proportional to 54,584.40, 81,827.10 and 19,515.90 is: 29,256.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,584.40 : 81,827.10 = 19,515.90 : x
  2. Step 2: Convert to fraction form
    54,584.40/81,827.10 = 19,515.90/x
  3. Step 3: Cross multiply
    54,584.40x = 81,827.10 × 19,515.90
  4. Step 4: Simplify right side
    54,584.40x = 1,596,929,500.89
  5. Step 5: Solve for x
    x = 1,596,929,500.89/54,584.40
  6. Step 6: Final answer
    x = 29,256.15

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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.