Home / 86,800.96-119,802.72-51,002.56

Finding the Fourth Proportional to 86,800.96, 119,802.72 and 51,002.56

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Solution

The fourth proportional to 86,800.96, 119,802.72 and 51,002.56 is: 70,393.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,800.96 : 119,802.72 = 51,002.56 : x
  2. Step 2: Convert to fraction form
    86,800.96/119,802.72 = 51,002.56/x
  3. Step 3: Cross multiply
    86,800.96x = 119,802.72 × 51,002.56
  4. Step 4: Simplify right side
    86,800.96x = 6,110,245,414.96
  5. Step 5: Solve for x
    x = 6,110,245,414.96/86,800.96
  6. Step 6: Final answer
    x = 70,393.75

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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.