Home / 66,530.45-91,808.15-36,309.75

Finding the Fourth Proportional to 66,530.45, 91,808.15 and 36,309.75

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Solution

The fourth proportional to 66,530.45, 91,808.15 and 36,309.75 is: 50,105.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,530.45 : 91,808.15 = 36,309.75 : x
  2. Step 2: Convert to fraction form
    66,530.45/91,808.15 = 36,309.75/x
  3. Step 3: Cross multiply
    66,530.45x = 91,808.15 × 36,309.75
  4. Step 4: Simplify right side
    66,530.45x = 3,333,530,792.91
  5. Step 5: Solve for x
    x = 3,333,530,792.91/66,530.45
  6. Step 6: Final answer
    x = 50,105.34

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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.