Home / 54,348.20-81,695.10-51,237.80

Finding the Fourth Proportional to 54,348.20, 81,695.10 and 51,237.80

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Solution

The fourth proportional to 54,348.20, 81,695.10 and 51,237.80 is: 77,019.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,348.20 : 81,695.10 = 51,237.80 : x
  2. Step 2: Convert to fraction form
    54,348.20/81,695.10 = 51,237.80/x
  3. Step 3: Cross multiply
    54,348.20x = 81,695.10 × 51,237.80
  4. Step 4: Simplify right side
    54,348.20x = 4,185,877,194.78
  5. Step 5: Solve for x
    x = 4,185,877,194.78/54,348.20
  6. Step 6: Final answer
    x = 77,019.61

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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.