Home / 81,170.55-112,015.04-45,360.55

Finding the Fourth Proportional to 81,170.55, 112,015.04 and 45,360.55

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Solution

The fourth proportional to 81,170.55, 112,015.04 and 45,360.55 is: 62,597.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,170.55 : 112,015.04 = 45,360.55 : x
  2. Step 2: Convert to fraction form
    81,170.55/112,015.04 = 45,360.55/x
  3. Step 3: Cross multiply
    81,170.55x = 112,015.04 × 45,360.55
  4. Step 4: Simplify right side
    81,170.55x = 5,081,063,735.89
  5. Step 5: Solve for x
    x = 5,081,063,735.89/81,170.55
  6. Step 6: Final answer
    x = 62,597.38

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Find fourth proportional to 81,171.55, 112,016.41 and 45,361.55
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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.