Home / 81,326.23-112,230.77-45,519.57

Finding the Fourth Proportional to 81,326.23, 112,230.77 and 45,519.57

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Solution

The fourth proportional to 81,326.23, 112,230.77 and 45,519.57 is: 62,817.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,326.23 : 112,230.77 = 45,519.57 : x
  2. Step 2: Convert to fraction form
    81,326.23/112,230.77 = 45,519.57/x
  3. Step 3: Cross multiply
    81,326.23x = 112,230.77 × 45,519.57
  4. Step 4: Simplify right side
    81,326.23x = 5,108,696,163.57
  5. Step 5: Solve for x
    x = 5,108,696,163.57/81,326.23
  6. Step 6: Final answer
    x = 62,817.33

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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.