Home / 86,668.17-129,626.91-51,044.55

Finding the Fourth Proportional to 86,668.17, 129,626.91 and 51,044.55

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Solution

The fourth proportional to 86,668.17, 129,626.91 and 51,044.55 is: 76,345.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,668.17 : 129,626.91 = 51,044.55 : x
  2. Step 2: Convert to fraction form
    86,668.17/129,626.91 = 51,044.55/x
  3. Step 3: Cross multiply
    86,668.17x = 129,626.91 × 51,044.55
  4. Step 4: Simplify right side
    86,668.17x = 6,616,747,288.84
  5. Step 5: Solve for x
    x = 6,616,747,288.84/86,668.17
  6. Step 6: Final answer
    x = 76,345.76

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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.