Home / 83,138.92-114,649.74-51,301.06

Finding the Fourth Proportional to 83,138.92, 114,649.74 and 51,301.06

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Solution

The fourth proportional to 83,138.92, 114,649.74 and 51,301.06 is: 70,744.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,138.92 : 114,649.74 = 51,301.06 : x
  2. Step 2: Convert to fraction form
    83,138.92/114,649.74 = 51,301.06/x
  3. Step 3: Cross multiply
    83,138.92x = 114,649.74 × 51,301.06
  4. Step 4: Simplify right side
    83,138.92x = 5,881,653,190.72
  5. Step 5: Solve for x
    x = 5,881,653,190.72/83,138.92
  6. Step 6: Final answer
    x = 70,744.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.