Home / 66,231.81-99,326.66-21,850.29

Finding the Fourth Proportional to 66,231.81, 99,326.66 and 21,850.29

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Solution

The fourth proportional to 66,231.81, 99,326.66 and 21,850.29 is: 32,768.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,231.81 : 99,326.66 = 21,850.29 : x
  2. Step 2: Convert to fraction form
    66,231.81/99,326.66 = 21,850.29/x
  3. Step 3: Cross multiply
    66,231.81x = 99,326.66 × 21,850.29
  4. Step 4: Simplify right side
    66,231.81x = 2,170,316,216.48
  5. Step 5: Solve for x
    x = 2,170,316,216.48/66,231.81
  6. Step 6: Final answer
    x = 32,768.49

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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.