Home / 90,837.95-125,249.13-62,171.43

Finding the Fourth Proportional to 90,837.95, 125,249.13 and 62,171.43

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Solution

The fourth proportional to 90,837.95, 125,249.13 and 62,171.43 is: 85,723.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,837.95 : 125,249.13 = 62,171.43 : x
  2. Step 2: Convert to fraction form
    90,837.95/125,249.13 = 62,171.43/x
  3. Step 3: Cross multiply
    90,837.95x = 125,249.13 × 62,171.43
  4. Step 4: Simplify right side
    90,837.95x = 7,786,917,518.36
  5. Step 5: Solve for x
    x = 7,786,917,518.36/90,837.95
  6. Step 6: Final answer
    x = 85,723.18

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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.