Home / 86,693.85-130,073.18-34,139.97

Finding the Fourth Proportional to 86,693.85, 130,073.18 and 34,139.97

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Solution

The fourth proportional to 86,693.85, 130,073.18 and 34,139.97 is: 51,222.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,693.85 : 130,073.18 = 34,139.97 : x
  2. Step 2: Convert to fraction form
    86,693.85/130,073.18 = 34,139.97/x
  3. Step 3: Cross multiply
    86,693.85x = 130,073.18 × 34,139.97
  4. Step 4: Simplify right side
    86,693.85x = 4,440,694,292.30
  5. Step 5: Solve for x
    x = 4,440,694,292.30/86,693.85
  6. Step 6: Final answer
    x = 51,222.71

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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.