Home / 81,490.06-122,235.18-22,326.24

Finding the Fourth Proportional to 81,490.06, 122,235.18 and 22,326.24

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Solution

The fourth proportional to 81,490.06, 122,235.18 and 22,326.24 is: 33,489.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,490.06 : 122,235.18 = 22,326.24 : x
  2. Step 2: Convert to fraction form
    81,490.06/122,235.18 = 22,326.24/x
  3. Step 3: Cross multiply
    81,490.06x = 122,235.18 × 22,326.24
  4. Step 4: Simplify right side
    81,490.06x = 2,729,051,965.12
  5. Step 5: Solve for x
    x = 2,729,051,965.12/81,490.06
  6. Step 6: Final answer
    x = 33,489.38

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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.