Home / 83,736.72-115,441.20-66,798.45

Finding the Fourth Proportional to 83,736.72, 115,441.20 and 66,798.45

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Solution

The fourth proportional to 83,736.72, 115,441.20 and 66,798.45 is: 92,089.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,736.72 : 115,441.20 = 66,798.45 : x
  2. Step 2: Convert to fraction form
    83,736.72/115,441.20 = 66,798.45/x
  3. Step 3: Cross multiply
    83,736.72x = 115,441.20 × 66,798.45
  4. Step 4: Simplify right side
    83,736.72x = 7,711,293,226.14
  5. Step 5: Solve for x
    x = 7,711,293,226.14/83,736.72
  6. Step 6: Final answer
    x = 92,089.75

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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.