Home / 71,792.14-99,069.27-39,520.47

Finding the Fourth Proportional to 71,792.14, 99,069.27 and 39,520.47

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Solution

The fourth proportional to 71,792.14, 99,069.27 and 39,520.47 is: 54,536.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,792.14 : 99,069.27 = 39,520.47 : x
  2. Step 2: Convert to fraction form
    71,792.14/99,069.27 = 39,520.47/x
  3. Step 3: Cross multiply
    71,792.14x = 99,069.27 × 39,520.47
  4. Step 4: Simplify right side
    71,792.14x = 3,915,264,112.96
  5. Step 5: Solve for x
    x = 3,915,264,112.96/71,792.14
  6. Step 6: Final answer
    x = 54,536.11

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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.