Home / 85,635.48-118,216.62-49,812.42

Finding the Fourth Proportional to 85,635.48, 118,216.62 and 49,812.42

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Solution

The fourth proportional to 85,635.48, 118,216.62 and 49,812.42 is: 68,764.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,635.48 : 118,216.62 = 49,812.42 : x
  2. Step 2: Convert to fraction form
    85,635.48/118,216.62 = 49,812.42/x
  3. Step 3: Cross multiply
    85,635.48x = 118,216.62 × 49,812.42
  4. Step 4: Simplify right side
    85,635.48x = 5,888,655,926.42
  5. Step 5: Solve for x
    x = 5,888,655,926.42/85,635.48
  6. Step 6: Final answer
    x = 68,764.21

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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.