Home / 86,796.05-130,193.13-65,864.64

Finding the Fourth Proportional to 86,796.05, 130,193.13 and 65,864.64

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Solution

The fourth proportional to 86,796.05, 130,193.13 and 65,864.64 is: 98,796.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,796.05 : 130,193.13 = 65,864.64 : x
  2. Step 2: Convert to fraction form
    86,796.05/130,193.13 = 65,864.64/x
  3. Step 3: Cross multiply
    86,796.05x = 130,193.13 × 65,864.64
  4. Step 4: Simplify right side
    86,796.05x = 8,575,123,637.92
  5. Step 5: Solve for x
    x = 8,575,123,637.92/86,796.05
  6. Step 6: Final answer
    x = 98,796.24

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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.