Home / 86,083.76-129,139.00-43,941.02

Finding the Fourth Proportional to 86,083.76, 129,139.00 and 43,941.02

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Solution

The fourth proportional to 86,083.76, 129,139.00 and 43,941.02 is: 65,918.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,083.76 : 129,139.00 = 43,941.02 : x
  2. Step 2: Convert to fraction form
    86,083.76/129,139.00 = 43,941.02/x
  3. Step 3: Cross multiply
    86,083.76x = 129,139.00 × 43,941.02
  4. Step 4: Simplify right side
    86,083.76x = 5,674,498,626.23
  5. Step 5: Solve for x
    x = 5,674,498,626.23/86,083.76
  6. Step 6: Final answer
    x = 65,918.34

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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.