Home / 83,571.66-115,330.45-51,290.10

Finding the Fourth Proportional to 83,571.66, 115,330.45 and 51,290.10

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Solution

The fourth proportional to 83,571.66, 115,330.45 and 51,290.10 is: 70,781.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,571.66 : 115,330.45 = 51,290.10 : x
  2. Step 2: Convert to fraction form
    83,571.66/115,330.45 = 51,290.10/x
  3. Step 3: Cross multiply
    83,571.66x = 115,330.45 × 51,290.10
  4. Step 4: Simplify right side
    83,571.66x = 5,915,310,313.55
  5. Step 5: Solve for x
    x = 5,915,310,313.55/83,571.66
  6. Step 6: Final answer
    x = 70,781.29

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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.