Home / 86,404.13-129,504.36-38,963.67

Finding the Fourth Proportional to 86,404.13, 129,504.36 and 38,963.67

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Solution

The fourth proportional to 86,404.13, 129,504.36 and 38,963.67 is: 58,399.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,404.13 : 129,504.36 = 38,963.67 : x
  2. Step 2: Convert to fraction form
    86,404.13/129,504.36 = 38,963.67/x
  3. Step 3: Cross multiply
    86,404.13x = 129,504.36 × 38,963.67
  4. Step 4: Simplify right side
    86,404.13x = 5,045,965,146.60
  5. Step 5: Solve for x
    x = 5,045,965,146.60/86,404.13
  6. Step 6: Final answer
    x = 58,399.59

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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.