Home / 66,215.35-99,326.09-21,845.98

Finding the Fourth Proportional to 66,215.35, 99,326.09 and 21,845.98

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Solution

The fourth proportional to 66,215.35, 99,326.09 and 21,845.98 is: 32,769.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,215.35 : 99,326.09 = 21,845.98 : x
  2. Step 2: Convert to fraction form
    66,215.35/99,326.09 = 21,845.98/x
  3. Step 3: Cross multiply
    66,215.35x = 99,326.09 × 21,845.98
  4. Step 4: Simplify right side
    66,215.35x = 2,169,875,775.62
  5. Step 5: Solve for x
    x = 2,169,875,775.62/66,215.35
  6. Step 6: Final answer
    x = 32,769.98

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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.