Home / 66,653.12-99,979.50-22,279.88

Finding the Fourth Proportional to 66,653.12, 99,979.50 and 22,279.88

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Solution

The fourth proportional to 66,653.12, 99,979.50 and 22,279.88 is: 33,419.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,653.12 : 99,979.50 = 22,279.88 : x
  2. Step 2: Convert to fraction form
    66,653.12/99,979.50 = 22,279.88/x
  3. Step 3: Cross multiply
    66,653.12x = 99,979.50 × 22,279.88
  4. Step 4: Simplify right side
    66,653.12x = 2,227,531,262.46
  5. Step 5: Solve for x
    x = 2,227,531,262.46/66,653.12
  6. Step 6: Final answer
    x = 33,419.76

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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.