Home / 66,530.31-91,814.54-36,317.67

Finding the Fourth Proportional to 66,530.31, 91,814.54 and 36,317.67

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Solution

The fourth proportional to 66,530.31, 91,814.54 and 36,317.67 is: 50,119.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,530.31 : 91,814.54 = 36,317.67 : x
  2. Step 2: Convert to fraction form
    66,530.31/91,814.54 = 36,317.67/x
  3. Step 3: Cross multiply
    66,530.31x = 91,814.54 × 36,317.67
  4. Step 4: Simplify right side
    66,530.31x = 3,334,489,983.33
  5. Step 5: Solve for x
    x = 3,334,489,983.33/66,530.31
  6. Step 6: Final answer
    x = 50,119.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.