Home / 81,626.33-112,607.21-54,740.81

Finding the Fourth Proportional to 81,626.33, 112,607.21 and 54,740.81

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Solution

The fourth proportional to 81,626.33, 112,607.21 and 54,740.81 is: 75,517.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,626.33 : 112,607.21 = 54,740.81 : x
  2. Step 2: Convert to fraction form
    81,626.33/112,607.21 = 54,740.81/x
  3. Step 3: Cross multiply
    81,626.33x = 112,607.21 × 54,740.81
  4. Step 4: Simplify right side
    81,626.33x = 6,164,209,613.54
  5. Step 5: Solve for x
    x = 6,164,209,613.54/81,626.33
  6. Step 6: Final answer
    x = 75,517.42

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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.