Home / 81,812.37-112,854.94-49,098.42

Finding the Fourth Proportional to 81,812.37, 112,854.94 and 49,098.42

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Solution

The fourth proportional to 81,812.37, 112,854.94 and 49,098.42 is: 67,728.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,812.37 : 112,854.94 = 49,098.42 : x
  2. Step 2: Convert to fraction form
    81,812.37/112,854.94 = 49,098.42/x
  3. Step 3: Cross multiply
    81,812.37x = 112,854.94 × 49,098.42
  4. Step 4: Simplify right side
    81,812.37x = 5,540,999,243.19
  5. Step 5: Solve for x
    x = 5,540,999,243.19/81,812.37
  6. Step 6: Final answer
    x = 67,728.14

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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.