Home / 66,549.24-91,857.90-39,710.52

Finding the Fourth Proportional to 66,549.24, 91,857.90 and 39,710.52

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Solution

The fourth proportional to 66,549.24, 91,857.90 and 39,710.52 is: 54,812.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,549.24 : 91,857.90 = 39,710.52 : x
  2. Step 2: Convert to fraction form
    66,549.24/91,857.90 = 39,710.52/x
  3. Step 3: Cross multiply
    66,549.24x = 91,857.90 × 39,710.52
  4. Step 4: Simplify right side
    66,549.24x = 3,647,724,975.11
  5. Step 5: Solve for x
    x = 3,647,724,975.11/66,549.24
  6. Step 6: Final answer
    x = 54,812.42

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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.