Home / 66,201.42-99,308.61-21,810.06

Finding the Fourth Proportional to 66,201.42, 99,308.61 and 21,810.06

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Solution

The fourth proportional to 66,201.42, 99,308.61 and 21,810.06 is: 32,717.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,201.42 : 99,308.61 = 21,810.06 : x
  2. Step 2: Convert to fraction form
    66,201.42/99,308.61 = 21,810.06/x
  3. Step 3: Cross multiply
    66,201.42x = 99,308.61 × 21,810.06
  4. Step 4: Simplify right side
    66,201.42x = 2,165,926,742.62
  5. Step 5: Solve for x
    x = 2,165,926,742.62/66,201.42
  6. Step 6: Final answer
    x = 32,717.22

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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.