Home / 86,051.04-129,105.36-43,912.80

Finding the Fourth Proportional to 86,051.04, 129,105.36 and 43,912.80

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Solution

The fourth proportional to 86,051.04, 129,105.36 and 43,912.80 is: 65,883.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,051.04 : 129,105.36 = 43,912.80 : x
  2. Step 2: Convert to fraction form
    86,051.04/129,105.36 = 43,912.80/x
  3. Step 3: Cross multiply
    86,051.04x = 129,105.36 × 43,912.80
  4. Step 4: Simplify right side
    86,051.04x = 5,669,377,852.61
  5. Step 5: Solve for x
    x = 5,669,377,852.61/86,051.04
  6. Step 6: Final answer
    x = 65,883.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.