Home / 53,917.30-80,878.35-18,378.10

Finding the Fourth Proportional to 53,917.30, 80,878.35 and 18,378.10

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Solution

The fourth proportional to 53,917.30, 80,878.35 and 18,378.10 is: 27,567.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,917.30 : 80,878.35 = 18,378.10 : x
  2. Step 2: Convert to fraction form
    53,917.30/80,878.35 = 18,378.10/x
  3. Step 3: Cross multiply
    53,917.30x = 80,878.35 × 18,378.10
  4. Step 4: Simplify right side
    53,917.30x = 1,486,390,404.14
  5. Step 5: Solve for x
    x = 1,486,390,404.14/53,917.30
  6. Step 6: Final answer
    x = 27,567.97

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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.