Home / 53,918.20-80,877.30-18,854.20

Finding the Fourth Proportional to 53,918.20, 80,877.30 and 18,854.20

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Solution

The fourth proportional to 53,918.20, 80,877.30 and 18,854.20 is: 28,281.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,918.20 : 80,877.30 = 18,854.20 : x
  2. Step 2: Convert to fraction form
    53,918.20/80,877.30 = 18,854.20/x
  3. Step 3: Cross multiply
    53,918.20x = 80,877.30 × 18,854.20
  4. Step 4: Simplify right side
    53,918.20x = 1,524,876,789.66
  5. Step 5: Solve for x
    x = 1,524,876,789.66/53,918.20
  6. Step 6: Final answer
    x = 28,281.30

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1.5x scale

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.