Home / 86,083.16-129,119.87-26,911.85

Finding the Fourth Proportional to 86,083.16, 129,119.87 and 26,911.85

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Solution

The fourth proportional to 86,083.16, 129,119.87 and 26,911.85 is: 40,366.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,083.16 : 129,119.87 = 26,911.85 : x
  2. Step 2: Convert to fraction form
    86,083.16/129,119.87 = 26,911.85/x
  3. Step 3: Cross multiply
    86,083.16x = 129,119.87 × 26,911.85
  4. Step 4: Simplify right side
    86,083.16x = 3,474,854,573.46
  5. Step 5: Solve for x
    x = 3,474,854,573.46/86,083.16
  6. Step 6: Final answer
    x = 40,366.25

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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.