Home / 55,131.17-76,098.35-31,273.70

Finding the Fourth Proportional to 55,131.17, 76,098.35 and 31,273.70

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Solution

The fourth proportional to 55,131.17, 76,098.35 and 31,273.70 is: 43,167.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,131.17 : 76,098.35 = 31,273.70 : x
  2. Step 2: Convert to fraction form
    55,131.17/76,098.35 = 31,273.70/x
  3. Step 3: Cross multiply
    55,131.17x = 76,098.35 × 31,273.70
  4. Step 4: Simplify right side
    55,131.17x = 2,379,876,666.09
  5. Step 5: Solve for x
    x = 2,379,876,666.09/55,131.17
  6. Step 6: Final answer
    x = 43,167.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.