Home / 66,603.24-91,909.62-36,388.08

Finding the Fourth Proportional to 66,603.24, 91,909.62 and 36,388.08

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Solution

The fourth proportional to 66,603.24, 91,909.62 and 36,388.08 is: 50,213.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,603.24 : 91,909.62 = 36,388.08 : x
  2. Step 2: Convert to fraction form
    66,603.24/91,909.62 = 36,388.08/x
  3. Step 3: Cross multiply
    66,603.24x = 91,909.62 × 36,388.08
  4. Step 4: Simplify right side
    66,603.24x = 3,344,414,605.33
  5. Step 5: Solve for x
    x = 3,344,414,605.33/66,603.24
  6. Step 6: Final answer
    x = 50,213.99

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1.5x scale

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.