Home / 53,878.23-80,854.29-18,817.92

Finding the Fourth Proportional to 53,878.23, 80,854.29 and 18,817.92

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Solution

The fourth proportional to 53,878.23, 80,854.29 and 18,817.92 is: 28,239.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,878.23 : 80,854.29 = 18,817.92 : x
  2. Step 2: Convert to fraction form
    53,878.23/80,854.29 = 18,817.92/x
  3. Step 3: Cross multiply
    53,878.23x = 80,854.29 × 18,817.92
  4. Step 4: Simplify right side
    53,878.23x = 1,521,509,560.88
  5. Step 5: Solve for x
    x = 1,521,509,560.88/53,878.23
  6. Step 6: Final answer
    x = 28,239.78

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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.