Home / 66,574.25-91,857.34-39,711.52

Finding the Fourth Proportional to 66,574.25, 91,857.34 and 39,711.52

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Solution

The fourth proportional to 66,574.25, 91,857.34 and 39,711.52 is: 54,792.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,574.25 : 91,857.34 = 39,711.52 : x
  2. Step 2: Convert to fraction form
    66,574.25/91,857.34 = 39,711.52/x
  3. Step 3: Cross multiply
    66,574.25x = 91,857.34 × 39,711.52
  4. Step 4: Simplify right side
    66,574.25x = 3,647,794,242.32
  5. Step 5: Solve for x
    x = 3,647,794,242.32/66,574.25
  6. Step 6: Final answer
    x = 54,792.87

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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.